I have updated kexec patch for ia64. Attached patch fixes a couple of
bugs from previous version and incorporates code developed by Nan Hai.
This patch works on 2.6.16-rc6 kernel. Also attached is a patch for
kexec-tools which applies on top of kexec-tools-1.101 release from Eric
Biederman <http://www.xmission.com/%
7Eebiederm/files/kexec/kexec-tools-1.101.tar.gz> and adds support for
ia64. Please test and provide feedback.
I am working on integrating kdump support and will post that patch once
I have tested it.
--
Khalid
====================================================================
Khalid Aziz Open Source and Linux Organization
(970)898-9214 Hewlett-Packard
[email protected] Fort Collins, CO
"The Linux kernel is subject to relentless development"
- Alessandro Rubini
diff -urNp linux-2.6.16-rc2/arch/ia64/hp/common/sba_iommu.c linux-2.6.16-rc2-ia64kexec/arch/ia64/hp/common/sba_iommu.c
--- linux-2.6.16-rc2/arch/ia64/hp/common/sba_iommu.c 2006-01-02 20:21:10.000000000 -0700
+++ linux-2.6.16-rc2-ia64kexec/arch/ia64/hp/common/sba_iommu.c 2006-02-09 14:38:48.000000000 -0700
@@ -1624,6 +1624,28 @@ ioc_iova_init(struct ioc *ioc)
READ_REG(ioc->ioc_hpa + IOC_IBASE);
}
+#ifdef CONFIG_KEXEC
+void
+ioc_iova_disable(void)
+{
+ struct ioc *ioc;
+
+ ioc = ioc_list;
+
+ while (ioc != NULL) {
+ /* Disable IOVA translation */
+ WRITE_REG(ioc->ibase & 0xfffffffffffffffe, ioc->ioc_hpa + IOC_IBASE);
+ READ_REG(ioc->ioc_hpa + IOC_IBASE);
+
+ /* Clear I/O TLB of any possible entries */
+ WRITE_REG(ioc->ibase | (get_iovp_order(ioc->iov_size) + iovp_shift), ioc->ioc_hpa + IOC_PCOM);
+ READ_REG(ioc->ioc_hpa + IOC_PCOM);
+
+ ioc = ioc->next;
+ }
+}
+#endif
+
static void __init
ioc_resource_init(struct ioc *ioc)
{
diff -urNp linux-2.6.16-rc2/arch/ia64/Kconfig linux-2.6.16-rc2-ia64kexec/arch/ia64/Kconfig
--- linux-2.6.16-rc2/arch/ia64/Kconfig 2006-01-02 20:21:10.000000000 -0700
+++ linux-2.6.16-rc2-ia64kexec/arch/ia64/Kconfig 2006-02-09 14:43:33.000000000 -0700
@@ -374,6 +374,23 @@ config IA64_PALINFO
To use this option, you have to ensure that the "/proc file system
support" (CONFIG_PROC_FS) is enabled, too.
+config KEXEC
+ bool "kexec system call (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ kexec is a system call that implements the ability to shutdown your
+ current kernel, and to start another kernel. It is like a reboot
+ but it is indepedent of the system firmware. And like a reboot
+ you can start any kernel with it, not just Linux.
+
+ The name comes from the similiarity to the exec system call.
+
+ It is an ongoing process to be certain the hardware in a machine
+ is properly shutdown, so do not be surprised if this code does not
+ initially work for you. It may help to enable device hotplugging
+ support. As of this writing the exact hardware interface is
+ strongly in flux, so no good recommendation can be made.
+
source "drivers/firmware/Kconfig"
source "fs/Kconfig.binfmt"
diff -urNp linux-2.6.16-rc2/arch/ia64/kernel/crash.c linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/crash.c
--- linux-2.6.16-rc2/arch/ia64/kernel/crash.c 1969-12-31 17:00:00.000000000 -0700
+++ linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/crash.c 2006-02-09 15:36:23.000000000 -0700
@@ -0,0 +1,46 @@
+/*
+ * arch/ia64/kernel/crash.c
+ *
+ * Architecture specific (ia64) functions for kexec based crash dumps.
+ *
+ * Created by: Khalid Aziz <[email protected]>
+ *
+ * Copyright (C) 2005 Hewlett-Packard Development Company, L.P.
+ *
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/smp.h>
+#include <linux/irq.h>
+#include <linux/reboot.h>
+#include <linux/kexec.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/elf.h>
+#include <linux/elfcore.h>
+
+extern void device_shutdown(void);
+
+void
+machine_crash_shutdown(struct pt_regs *pt)
+{
+ extern void terminate_irqs(void);
+
+ /* This function is only called after the system
+ * has paniced or is otherwise in a critical state.
+ * The minimum amount of code to allow a kexec'd kernel
+ * to run successfully needs to happen here.
+ *
+ * In practice this means shooting down the other cpus in
+ * an SMP system.
+ */
+ if (in_interrupt()) {
+ terminate_irqs();
+ ia64_eoi();
+ }
+ system_state = SYSTEM_RESTART;
+ device_shutdown();
+ system_state = SYSTEM_BOOTING;
+ machine_shutdown();
+}
diff -urNp linux-2.6.16-rc2/arch/ia64/kernel/entry.S linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/entry.S
--- linux-2.6.16-rc2/arch/ia64/kernel/entry.S 2006-02-09 10:48:40.000000000 -0700
+++ linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/entry.S 2006-02-09 11:34:02.000000000 -0700
@@ -1588,7 +1588,7 @@ sys_call_table:
data8 sys_mq_timedreceive // 1265
data8 sys_mq_notify
data8 sys_mq_getsetattr
- data8 sys_ni_syscall // reserved for kexec_load
+ data8 sys_kexec_load
data8 sys_ni_syscall // reserved for vserver
data8 sys_waitid // 1270
data8 sys_add_key
diff -urNp linux-2.6.16-rc2/arch/ia64/kernel/machine_kexec.c linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/machine_kexec.c
--- linux-2.6.16-rc2/arch/ia64/kernel/machine_kexec.c 1969-12-31 17:00:00.000000000 -0700
+++ linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/machine_kexec.c 2006-03-10 14:36:51.000000000 -0700
@@ -0,0 +1,165 @@
+/*
+ * arch/ia64/kernel/machine_kexec.c
+ *
+ * Handle transition of Linux booting another kernel
+ * Copyright (C) 2005 Hewlett-Packard Development Comapny, L.P.
+ * Copyright (C) 2005 Khalid Aziz <[email protected]>
+ * Copyright (C) 2006 Intel Corp, Zou Nan hai <[email protected]>
+ *
+ * This source code is licensed under the GNU General Public License,
+ * Version 2. See the file COPYING for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/kexec.h>
+#include <linux/pci.h>
+#ifdef CONFIG_HOTPLUG_CPU
+#include <linux/cpu.h>
+#endif
+#include <asm/mmu_context.h>
+#include <asm/setup.h>
+#include <asm/mca.h>
+#include <asm/page.h>
+#include <asm/bitops.h>
+#include <asm/tlbflush.h>
+#include <asm/delay.h>
+
+DECLARE_PER_CPU(u64, ia64_mca_pal_base);
+
+extern unsigned long ia64_iobase;
+extern unsigned long kexec_reboot;
+extern void kexec_stop_this_cpu(void *);
+extern struct subsystem devices_subsys;
+
+static void set_io_base(void)
+{
+ unsigned long phys_iobase;
+
+ /* set kr0 to iobase */
+ phys_iobase = __pa(ia64_iobase);
+ ia64_set_kr(IA64_KR_IO_BASE, __IA64_UNCACHED_OFFSET | phys_iobase);
+};
+
+typedef void (*relocate_new_kernel_t)( unsigned long, unsigned long,
+ struct ia64_boot_param *, unsigned long);
+
+const extern unsigned char relocate_new_kernel[];
+const extern unsigned long kexec_fake_sal_rendez[];
+const extern unsigned int relocate_new_kernel_size;
+extern void ioc_iova_disable(void);
+
+volatile extern long kexec_rendez;
+volatile const extern unsigned char kexec_rendez_reloc[];
+
+/*
+ * Do what every setup is needed on image and the
+ * reboot code buffer to allow us to avoid allocations
+ * later.
+ */
+int machine_kexec_prepare(struct kimage *image)
+{
+ void *control_code_buffer;
+
+ /* Pre-load control code buffer to minimize work in kexec path */
+ control_code_buffer = page_address(image->control_code_page);
+ memcpy((void *)control_code_buffer, &relocate_new_kernel, relocate_new_kernel_size);
+ kexec_rendez = (long)(page_to_pfn(image->control_code_page) << PAGE_SHIFT) + (long)kexec_rendez_reloc - (long)&kexec_fake_sal_rendez;
+ flush_icache_range(control_code_buffer,
+ control_code_buffer + relocate_new_kernel_size);
+
+ return 0;
+}
+
+void machine_kexec_cleanup(struct kimage *image)
+{
+}
+
+void machine_shutdown(void)
+{
+ struct pci_dev *dev;
+ irq_desc_t *idesc;
+ cpumask_t mask = CPU_MASK_NONE;
+
+ /* Disable all PCI devices */
+ list_for_each_entry(dev, &pci_devices, global_list) {
+ if (!(dev->is_enabled)) {
+ continue;
+ }
+ if (!(idesc = irq_descp(dev->irq)))
+ continue;
+ cpu_set(0, mask);
+ disable_irq_nosync(dev->irq);
+ idesc->handler->end(dev->irq);
+ idesc->handler->set_affinity(dev->irq, mask);
+ idesc->action = NULL;
+ pci_disable_device(dev);
+ pci_set_power_state(dev, 0);
+ }
+}
+
+/*
+ * Do not allocate memory (or fail in any way) in machine_kexec().
+ * We are past the point of no return, committed to rebooting now.
+ */
+void machine_kexec(struct kimage *image)
+{
+ unsigned long indirection_page;
+ relocate_new_kernel_t rnk;
+ void *pal_addr = efi_get_pal_addr();
+ unsigned long code_addr = (unsigned long)page_address(image->control_code_page);
+
+#ifdef CONFIG_SMP
+#ifdef CONFIG_HOTPLUG_CPU
+ int cpu;
+
+ for_each_online_cpu(cpu) {
+ if (cpu != smp_processor_id())
+ cpu_down(cpu);
+ }
+#else
+ smp_call_function(kexec_stop_this_cpu, (void *)image->start, 0, 0);
+#endif
+#endif
+
+ ia64_set_itv(1<<16);
+ /* Interrupts aren't acceptable while we reboot */
+ local_irq_disable();
+
+ /* set kr0 to the appropriate address */
+ set_io_base();
+
+ {
+ unsigned long pta, impl_va_bits;
+
+# define pte_bits 3
+# define vmlpt_bits (impl_va_bits - PAGE_SHIFT + pte_bits)
+# define POW2(n) (1ULL << (n))
+
+ /* Disable VHPT */
+ impl_va_bits = ffz(~(local_cpu_data->unimpl_va_mask | (7UL << 61)));
+ pta = POW2(61) - POW2(vmlpt_bits);
+ ia64_set_pta(pta | (0 << 8) | (vmlpt_bits << 2) | 0);
+ }
+
+#ifdef CONFIG_IA64_HP_ZX1
+ ioc_iova_disable();
+#endif
+ /* now execute the control code.
+ * We will start by executing the control code linked into the
+ * kernel as opposed to the code we copied in control code buffer * page. When this code switches to physical mode, we will start
+ * executing the code in control code buffer page. Reason for
+ * doing this is we start code execution in virtual address space.
+ * If we were to try to execute the newly copied code in virtual
+ * address space, we will need to make an ITLB entry to avoid ITLB
+ * miss. By executing the code linked into kernel, we take advantage
+ * of the ITLB entry already in place for kernel and avoid making
+ * a new entry.
+ */
+ indirection_page = image->head & PAGE_MASK;
+
+ rnk = (relocate_new_kernel_t)&code_addr;
+ (*rnk)(indirection_page, image->start, ia64_boot_param,
+ GRANULEROUNDDOWN((unsigned long) pal_addr));
+}
diff -urNp linux-2.6.16-rc2/arch/ia64/kernel/Makefile linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/Makefile
--- linux-2.6.16-rc2/arch/ia64/kernel/Makefile 2006-02-09 10:48:40.000000000 -0700
+++ linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/Makefile 2006-02-09 14:08:26.000000000 -0700
@@ -28,6 +28,7 @@ obj-$(CONFIG_IA64_CYCLONE) += cyclone.o
obj-$(CONFIG_CPU_FREQ) += cpufreq/
obj-$(CONFIG_IA64_MCA_RECOVERY) += mca_recovery.o
obj-$(CONFIG_KPROBES) += kprobes.o jprobes.o
+obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o crash.o
obj-$(CONFIG_IA64_UNCACHED_ALLOCATOR) += uncached.o
mca_recovery-y += mca_drv.o mca_drv_asm.o
diff -urNp linux-2.6.16-rc2/arch/ia64/kernel/relocate_kernel.S linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/relocate_kernel.S
--- linux-2.6.16-rc2/arch/ia64/kernel/relocate_kernel.S 1969-12-31 17:00:00.000000000 -0700
+++ linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/relocate_kernel.S 2006-02-21 12:22:53.000000000 -0700
@@ -0,0 +1,364 @@
+/*
+ * arch/ia64/kernel/relocate_kernel.S
+ *
+ * Relocate kexec'able kernel and start it
+ *
+ * Copyright (C) 2005 Hewlett-Packard Development Company, L.P.
+ * Copyright (C) 2005 Khalid Aziz <[email protected]>
+ * Copyright (C) 2005 Intel Corp, Zou Nan hai <[email protected]>
+ *
+ * This source code is licensed under the GNU General Public License,
+ * Version 2. See the file COPYING for more details.
+ */
+#include <linux/config.h>
+#include <asm/asmmacro.h>
+#include <asm/kregs.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/mca_asm.h>
+
+ /* Must be relocatable PIC code callable as a C function, that once
+ * it starts can not use the previous processes stack.
+ *
+ */
+GLOBAL_ENTRY(relocate_new_kernel)
+ .prologue
+ alloc r31=ar.pfs,4,0,0,0
+ .body
+.reloc_entry:
+{
+ rsm psr.i| psr.ic
+ mov r2=ip
+}
+ ;;
+{
+ flushrs // must be first insn in group
+ srlz.i
+}
+ ;;
+
+ //first switch to physical mode
+ add r3=1f-.reloc_entry, r2
+ movl r16 = IA64_PSR_AC|IA64_PSR_BN|IA64_PSR_IC|IA64_PSR_MFL
+ mov ar.rsc=0 // put RSE in enforced lazy mode
+ ;;
+ add r2=(memory_stack-.reloc_entry), r2
+ ;;
+ add sp=(memory_stack_end - .reloc_entry),r2
+ add r8=(register_stack - .reloc_entry),r2
+ ;;
+ tpa sp=sp
+ tpa r3=r3
+ ;;
+ loadrs
+ ;;
+ mov r18=ar.rnat
+ mov ar.bspstore=r8
+ ;;
+ mov cr.ipsr=r16
+ mov cr.iip=r3
+ mov cr.ifs=r0
+ srlz.i
+ ;;
+ mov ar.rnat=r18
+ rfi
+ ;;
+1:
+ //physical mode code begin
+ mov b6=in1
+ tpa r28=in2 // tpa must before TLB purge
+
+ // purge all TC entries
+#define O(member) IA64_CPUINFO_##member##_OFFSET
+ GET_THIS_PADDR(r2, cpu_info) // load phys addr of cpu_info into r2
+ ;;
+ addl r17=O(PTCE_STRIDE),r2
+ addl r2=O(PTCE_BASE),r2
+ ;;
+ ld8 r18=[r2],(O(PTCE_COUNT)-O(PTCE_BASE));; // r18=ptce_base
+ ld4 r19=[r2],4 // r19=ptce_count[0]
+ ld4 r21=[r17],4 // r21=ptce_stride[0]
+ ;;
+ ld4 r20=[r2] // r20=ptce_count[1]
+ ld4 r22=[r17] // r22=ptce_stride[1]
+ mov r24=r0
+ ;;
+ adds r20=-1,r20
+ ;;
+#undef O
+2:
+ cmp.ltu p6,p7=r24,r19
+(p7) br.cond.dpnt.few 4f
+ mov ar.lc=r20
+3:
+ ptc.e r18
+ ;;
+ add r18=r22,r18
+ br.cloop.sptk.few 3b
+ ;;
+ add r18=r21,r18
+ add r24=1,r24
+ ;;
+ br.sptk.few 2b
+4:
+ srlz.i
+ ;;
+ //purge TR entry for kernel text and data
+ movl r16=KERNEL_START
+ mov r18=KERNEL_TR_PAGE_SHIFT<<2
+ ;;
+ ptr.i r16, r18
+ ptr.d r16, r18
+ ;;
+ srlz.i
+ ;;
+
+ // purge TR entry for percpu data
+ movl r16=PERCPU_ADDR
+ mov r18=PERCPU_PAGE_SHIFT<<2
+ ;;
+ ptr.d r16,r18
+ ;;
+ srlz.d
+ ;;
+
+ // purge TR entry for pal code
+ mov r16=in3
+ mov r18=IA64_GRANULE_SHIFT<<2
+ ;;
+ ptr.i r16,r18
+ ;;
+ srlz.i
+ ;;
+
+ // purge TR entry for stack
+ mov r16=IA64_KR(CURRENT_STACK)
+ ;;
+ shl r16=r16,IA64_GRANULE_SHIFT
+ movl r19=PAGE_OFFSET
+ ;;
+ add r16=r19,r16
+ mov r18=IA64_GRANULE_SHIFT<<2
+ ;;
+ ptr.d r16,r18
+ ;;
+ srlz.i
+ ;;
+
+ // copy kexec kernel segments
+ movl r16=PAGE_MASK
+ ld8 r30=[in0],8;; // in0 is page_list
+ br.sptk.few .dest_page
+ ;;
+.loop:
+ ld8 r30=[in0], 8;;
+.dest_page:
+ tbit.z p0, p6=r30, 0;; // 0x1 dest page
+(p6) and r17=r30, r16
+(p6) br.cond.sptk.few .loop;;
+
+ tbit.z p0, p6=r30, 1;; // 0x2 indirect page
+(p6) and in0=r30, r16
+(p6) br.cond.sptk.few .loop;;
+
+ tbit.z p0, p6=r30, 2;; // 0x4 end flag
+(p6) br.cond.sptk.few .end_loop;;
+
+ tbit.z p6, p0=r30, 3;; // 0x8 source page
+(p6) br.cond.sptk.few .loop
+
+ and r18=r30, r16
+
+ // simple copy page, may optimize later
+ movl r14=PAGE_SIZE/8 - 1;;
+ mov ar.lc=r14;;
+1:
+ ld8 r14=[r18], 8;;
+ st8 [r17]=r14, 8;;
+ fc.i r17
+ br.ctop.sptk.few 1b
+ br.sptk.few .loop
+ ;;
+
+.end_loop:
+ sync.i // for fc.i
+ ;;
+ srlz.i
+ ;;
+ srlz.d
+ ;;
+ br.call.sptk.many b0=b6;;
+memory_stack:
+ .fill 8192, 1, 0
+memory_stack_end:
+register_stack:
+ .fill 8192, 1, 0
+register_stack_end:
+relocate_new_kernel_end:
+END(relocate_new_kernel)
+
+GLOBAL_ENTRY(kexec_fake_sal_rendez)
+ .prologue
+ alloc r31=ar.pfs,3,0,0,0
+ .body
+ mf.a
+ ;;
+ movl r25=kexec_rendez
+ ;;
+ ld8 r17=[r25]
+ {
+ flushrs
+ srlz.i
+ }
+ ;;
+ /* See where I am running, and compute gp */
+ {
+ mov ar.rsc = 0 /* Put RSE in enforce lacy, LE mode */
+ mov gp = ip /* gp == relocate_new_kernel */
+ }
+
+ movl r8=0x00000100000000
+ ;;
+ mov cr.iva=r8
+ /* Transition from virtual to physical mode */
+ rsm psr.i | psr.ic
+ srlz.i
+ ;;
+ movl r16=(IA64_PSR_AC | IA64_PSR_BN | IA64_PSR_IC | IA64_PSR_MFL)
+ ;;
+ mov cr.ipsr=r16
+ ;;
+ mov cr.iip=r17
+ mov cr.ifs=r0
+ ;;
+ rfi
+ ;;
+ .global kexec_rendez_reloc
+kexec_rendez_reloc: /* Now we are in physical mode */
+
+ mov b6=in0 /* _start addr */
+ mov r8=in1 /* ap_wakeup_vector */
+ mov r26=in2 /* PAL addr */
+ ;;
+ /* Purge kernel TRs */
+ movl r16=KERNEL_START
+ mov r18=KERNEL_TR_PAGE_SHIFT<<2
+ ;;
+ ptr.i r16,r18
+ ptr.d r16,r18
+ ;;
+ srlz.i
+ ;;
+ srlz.d
+ ;;
+ /* Purge percpu TR */
+ movl r16=PERCPU_ADDR
+ mov r18=PERCPU_PAGE_SHIFT<<2
+ ;;
+ ptr.d r16,r18
+ ;;
+ srlz.d
+ ;;
+ /* Purge PAL TR */
+ mov r18=IA64_GRANULE_SHIFT<<2
+ ;;
+ ptr.i r26,r18
+ ;;
+ srlz.i
+ ;;
+ /* Purge stack TR */
+ mov r16=IA64_KR(CURRENT_STACK)
+ ;;
+ shl r16=r16,IA64_GRANULE_SHIFT
+ movl r19=PAGE_OFFSET
+ ;;
+ add r16=r19,r16
+ mov r18=IA64_GRANULE_SHIFT<<2
+ ;;
+ ptr.d r16,r18
+ ;;
+ srlz.i
+ ;;
+
+ /* Ensure we can read and clear external interrupts */
+ mov cr.tpr=r0
+ srlz.d
+
+ shr.u r9=r8,6 /* which irr */
+ ;;
+ and r8=63,r8 /* bit offset into irr */
+ ;;
+ mov r10=1;;
+ ;;
+ shl r10=r10,r8 /* bit mask off irr we want */
+ cmp.eq p6,p0=0,r9
+ ;;
+(p6) br.cond.sptk.few check_irr0
+ cmp.eq p7,p0=1,r9
+ ;;
+(p7) br.cond.sptk.few check_irr1
+ cmp.eq p8,p0=2,r9
+ ;;
+(p8) br.cond.sptk.few check_irr2
+ cmp.eq p9,p0=3,r9
+ ;;
+(p9) br.cond.sptk.few check_irr3
+
+check_irr0:
+ mov r8=cr.irr0
+ ;;
+ and r8=r8,r10
+ ;;
+ cmp.eq p6,p0=0,r8
+(p6) br.cond.sptk.few check_irr0
+ br.few call_start
+
+check_irr1:
+ mov r8=cr.irr1
+ ;;
+ and r8=r8,r10
+ ;;
+ cmp.eq p6,p0=0,r8
+(p6) br.cond.sptk.few check_irr1
+ br.few call_start
+
+check_irr2:
+ mov r8=cr.irr2
+ ;;
+ and r8=r8,r10
+ ;;
+ cmp.eq p6,p0=0,r8
+(p6) br.cond.sptk.few check_irr2
+ br.few call_start
+
+check_irr3:
+ mov r8=cr.irr3
+ ;;
+ and r8=r8,r10
+ ;;
+ cmp.eq p6,p0=0,r8
+(p6) br.cond.sptk.few check_irr3
+ br.few call_start
+
+call_start:
+ mov cr.eoi=r0
+ ;;
+ srlz.d
+ ;;
+ mov r8=cr.ivr
+ ;;
+ srlz.d
+ ;;
+ cmp.eq p0,p6=15,r8
+(p6) br.cond.sptk.few call_start
+ br.sptk.few b6
+kexec_fake_sal_rendez_end:
+END(kexec_fake_sal_rendez)
+
+ .global relocate_new_kernel_size
+relocate_new_kernel_size:
+ data8 kexec_fake_sal_rendez_end - relocate_new_kernel
+
+ .global kexec_rendez
+kexec_rendez: data8 0xdeadbeefdeadbeef
+
diff -urNp linux-2.6.16-rc2/arch/ia64/kernel/smp.c linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/smp.c
--- linux-2.6.16-rc2/arch/ia64/kernel/smp.c 2006-01-02 20:21:10.000000000 -0700
+++ linux-2.6.16-rc2-ia64kexec/arch/ia64/kernel/smp.c 2006-02-15 16:37:33.000000000 -0700
@@ -30,6 +30,9 @@
#include <linux/delay.h>
#include <linux/efi.h>
#include <linux/bitops.h>
+#ifdef CONFIG_KEXEC
+#include <linux/kexec.h>
+#endif
#include <asm/atomic.h>
#include <asm/current.h>
@@ -84,6 +87,43 @@ unlock_ipi_calllock(void)
spin_unlock_irq(&call_lock);
}
+#ifdef CONFIG_KEXEC
+extern void kexec_fake_sal_rendez(void *start, unsigned long wake_up,
+ unsigned long pal_base);
+
+#define pte_bits 3
+#define vmlpt_bits (impl_va_bits - PAGE_SHIFT + pte_bits)
+#define POW2(n) (1ULL << (n))
+
+DECLARE_PER_CPU(u64, ia64_mca_pal_base);
+
+/*
+ * Stop the CPU and put it in fake SAL rendezvous. This allows CPU to wake
+ * up with IPI from boot processor
+ */
+void
+kexec_stop_this_cpu (void *func)
+{
+ unsigned long pta, impl_va_bits, pal_base;
+
+ /*
+ * Remove this CPU by putting it into fake SAL rendezvous
+ */
+ cpu_clear(smp_processor_id(), cpu_online_map);
+ max_xtp();
+ ia64_eoi();
+
+ /* Disable VHPT */
+ impl_va_bits = ffz(~(local_cpu_data->unimpl_va_mask | (7UL << 61)));
+ pta = POW2(61) - POW2(vmlpt_bits);
+ ia64_set_pta(pta | (0 << 8) | (vmlpt_bits << 2) | 0);
+
+ local_irq_disable();
+ pal_base = __get_cpu_var(ia64_mca_pal_base);
+ kexec_fake_sal_rendez(func, ap_wakeup_vector, pal_base);
+}
+#endif
+
static void
stop_this_cpu (void)
{
diff -urNp linux-2.6.16-rc2/include/asm-ia64/kexec.h linux-2.6.16-rc2-ia64kexec/include/asm-ia64/kexec.h
--- linux-2.6.16-rc2/include/asm-ia64/kexec.h 1969-12-31 17:00:00.000000000 -0700
+++ linux-2.6.16-rc2-ia64kexec/include/asm-ia64/kexec.h 2006-02-09 15:35:55.000000000 -0700
@@ -0,0 +1,24 @@
+#ifndef _ASM_IA64_KEXEC_H
+#define _ASM_IA64_KEXEC_H
+
+
+/* Maximum physical address we can use pages from */
+#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
+/* Maximum address we can reach in physical address mode */
+#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
+/* Maximum address we can use for the control code buffer */
+#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
+
+#define KEXEC_CONTROL_CODE_SIZE (8192 + 8192 + 4096)
+
+/* The native architecture */
+#define KEXEC_ARCH KEXEC_ARCH_IA_64
+
+#define MAX_NOTE_BYTES 1024
+
+
+static inline void
+crash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs)
+{
+}
+#endif /* _ASM_IA64_KEXEC_H */
diff -urNp linux-2.6.16-rc2/kernel/irq/handle.c linux-2.6.16-rc2-ia64kexec/kernel/irq/handle.c
--- linux-2.6.16-rc2/kernel/irq/handle.c 2006-01-02 20:21:10.000000000 -0700
+++ linux-2.6.16-rc2-ia64kexec/kernel/irq/handle.c 2006-02-09 15:11:49.000000000 -0700
@@ -100,6 +100,25 @@ fastcall int handle_IRQ_event(unsigned i
}
/*
+ * Terminate any outstanding interrupts
+ */
+void terminate_irqs(void)
+{
+ struct irqaction * action;
+ irq_desc_t *idesc;
+ int i;
+
+ for (i=0; i<NR_IRQS; i++) {
+ idesc = irq_descp(i);
+ action = idesc->action;
+ if (!action)
+ continue;
+ if (idesc->handler->end)
+ idesc->handler->end(i);
+ }
+}
+
+/*
* do_IRQ handles all normal device IRQ's (the special
* SMP cross-CPU interrupts have their own specific
* handlers).
diff -urNp kexec-tools-1.101/kdump/kdump.8 kexec-tools-1.101-ia64/kdump/kdump.8
--- kexec-tools-1.101/kdump/kdump.8 1969-12-31 17:00:00.000000000 -0700
+++ kexec-tools-1.101-ia64/kdump/kdump.8 2006-02-21 13:29:36.000000000 -0700
@@ -0,0 +1,39 @@
+.\" Hey, EMACS: -*- nroff -*-
+.\" First parameter, NAME, should be all caps
+.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
+.\" other parameters are allowed: see man(7), man(1)
+.TH KDUMP 8 "Jul 27, 2005"
+.\" Please adjust this date whenever revising the manpage.
+.\"
+.\" Some roff macros, for reference:
+.\" .nh disable hyphenation
+.\" .hy enable hyphenation
+.\" .ad l left justify
+.\" .ad b justify to both left and right margins
+.\" .nf disable filling
+.\" .fi enable filling
+.\" .br insert line break
+.\" .sp <n> insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+.SH NAME
+kdump \- This is just a placeholder until real man page has been written
+.SH SYNOPSIS
+.B kdump
+.RI [ options ] " start_address" ...
+.SH DESCRIPTION
+.PP
+.\" TeX users may be more comfortable with the \fB<whatever>\fP and
+.\" \fI<whatever>\fP escape sequences to invode bold face and italics,
+.\" respectively.
+\fBkdump\fP does not have a man page yet.
+.SH OPTIONS
+.\"These programs follow the usual GNU command line syntax, with long
+.\"options starting with two dashes (`-').
+.\"A summary of options is included below.
+.\"For a complete description, see the Info files.
+.SH SEE ALSO
+.SH AUTHOR
+kdump was written by Eric Biederman.
+.PP
+This manual page was written by Khalid Aziz <[email protected]>,
+for the Debian project (but may be used by others).
diff -urNp kexec-tools-1.101/kdump/Makefile kexec-tools-1.101-ia64/kdump/Makefile
--- kexec-tools-1.101/kdump/Makefile 2005-02-05 18:40:36.000000000 -0700
+++ kexec-tools-1.101-ia64/kdump/Makefile 2006-02-21 13:30:06.000000000 -0700
@@ -10,6 +10,7 @@ KDUMP_SRCS:= $(KDUMP_C_SRCS)
KDUMP_OBJS:= $(KDUMP_C_OBJS)
KDUMP_DEPS:= $(KDUMP_C_DEPS)
KDUMP:= $(SBINDIR)/kdump
+KDUMP_MANPAGE:= $(MANDIR)/man8/kdump.8
include $(KDUMP_DEPS)
@@ -25,6 +26,9 @@ $(KDUMP): $(KDUMP_OBJS)
mkdir -p $(@D)
$(CC) $(CFLAGS) -o $@ $(KDUMP_OBJS)
+$(KDUMP_MANPAGE): kdump/kdump.8
+ $(MKDIR) -p $(MANDIR)/man8
+ cp kdump/kdump.8 $(KDUMP_MANPAGE)
echo::
@echo "KDUMP_C_SRCS $(KDUMP_C_SRCS)"
@echo "KDUMP_C_DEPS $(KDUMP_C_DEPS)"
diff -urNp kexec-tools-1.101/kexec/arch/ia64/kexec-elf-ia64.c kexec-tools-1.101-ia64/kexec/arch/ia64/kexec-elf-ia64.c
--- kexec-tools-1.101/kexec/arch/ia64/kexec-elf-ia64.c 2004-12-21 13:01:37.000000000 -0700
+++ kexec-tools-1.101-ia64/kexec/arch/ia64/kexec-elf-ia64.c 2006-02-21 13:31:14.000000000 -0700
@@ -6,6 +6,7 @@
* Copyright (C) 2004 Silicon Graphics, Inc.
* Jesse Barnes <[email protected]>
* Copyright (C) 2004 Khalid Aziz <[email protected]> Hewlett Packard Co
+ * Copyright (C) 2005 Zou Nan hai <[email protected]> Intel Corp
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -34,6 +35,7 @@
#include <fcntl.h>
#include <unistd.h>
#include <getopt.h>
+#include <limits.h>
#include <elf.h>
#include <boot/elf_boot.h>
#include <ip_checksum.h>
@@ -74,23 +76,29 @@ void elf_ia64_usage(void)
{
printf(
" --command-line=STRING Set the kernel command line to STRING.\n"
- " --append=STRING Set the kernel command line to STRING.\n");
+ " --append=STRING Set the kernel command line to STRING.\n"
+ " --initrd=FILE Use FILE as the kernel's initial ramdisk.\n");
}
int elf_ia64_load(int argc, char **argv, const char *buf, off_t len,
struct kexec_info *info)
{
struct mem_ehdr ehdr;
- const char *command_line;
- int command_line_len;
- unsigned long entry, max_addr;
+ const char *command_line, *ramdisk=0;
+ char *ramdisk_buf = NULL;
+ off_t ramdisk_size = 0;
+ unsigned long command_line_len;
+ unsigned long entry, max_addr, gp_value;
+ unsigned command_line_base, ramdisk_base;
int result;
int opt;
#define OPT_APPEND (OPT_ARCH_MAX+0)
+#define OPT_RAMDISK (OPT_ARCH_MAX+1)
static const struct option options[] = {
KEXEC_ARCH_OPTIONS
{"command-line", 1, 0, OPT_APPEND},
{"append", 1, 0, OPT_APPEND},
+ {"initrd", 1, 0, OPT_RAMDISK},
{0, 0, 0, 0},
};
@@ -110,11 +118,14 @@ int elf_ia64_load(int argc, char **argv,
case OPT_APPEND:
command_line = optarg;
break;
+ case OPT_RAMDISK:
+ ramdisk = optarg;
+ break;
}
}
command_line_len = 0;
if (command_line) {
- command_line_len = strlen(command_line) + 1;
+ command_line_len = strlen(command_line) + 16;
}
/* Parse the Elf file */
@@ -129,13 +140,46 @@ int elf_ia64_load(int argc, char **argv,
/* Load the Elf data */
result = elf_exec_load(&ehdr, info);
- free_elf_info(&ehdr);
if (result < 0) {
fprintf(stderr, "ELF load failed\n");
+ free_elf_info(&ehdr);
return result;
}
+
+
+ /* Load the setup code */
+ elf_rel_build_load(info, &info->rhdr, purgatory, purgatory_size,
+ 0x80000, ULONG_MAX, 1);
+
+ if (command_line_len) {
+ char *cmdline = xmalloc(command_line_len);
+ strcpy(cmdline, command_line);
+ command_line_len = (command_line_len + 15)&(~15);
+ elf_rel_set_symbol(&info->rhdr, "__command_line_len",
+ &command_line_len, sizeof(long));
+ command_line_base = add_buffer(info, cmdline,
+ command_line_len, command_line_len,
+ 16, 0, max_addr, 1);
+ elf_rel_set_symbol(&info->rhdr, "__command_line",
+ &command_line_base, sizeof(long));
+ }
- /* For now we don't have arguments to pass :( */
- info->entry = (void *)entry;
+ if (ramdisk) {
+ ramdisk_buf = slurp_file(ramdisk, &ramdisk_size);
+ ramdisk_base = add_buffer(info, ramdisk_buf, ramdisk_size,
+ ramdisk_size,
+ getpagesize(), 0, max_addr, 1);
+ elf_rel_set_symbol(&info->rhdr, "__ramdisk_base",
+ &ramdisk_base, sizeof(long));
+ elf_rel_set_symbol(&info->rhdr, "__ramdisk_size",
+ &ramdisk_size, sizeof(long));
+ }
+
+ gp_value = info->rhdr.rel_addr + 0x200000;
+ elf_rel_set_symbol(&info->rhdr, "__gp_value", &gp_value,
+ sizeof(gp_value));
+
+ elf_rel_set_symbol(&info->rhdr, "__kernel_entry", &entry, sizeof(entry));
+ free_elf_info(&ehdr);
return 0;
}
diff -urNp kexec-tools-1.101/kexec/arch/ia64/kexec-elf-rel-ia64.c kexec-tools-1.101-ia64/kexec/arch/ia64/kexec-elf-rel-ia64.c
--- kexec-tools-1.101/kexec/arch/ia64/kexec-elf-rel-ia64.c 2004-12-20 15:43:23.000000000 -0700
+++ kexec-tools-1.101-ia64/kexec/arch/ia64/kexec-elf-rel-ia64.c 2006-02-09 15:46:39.000000000 -0700
@@ -1,8 +1,14 @@
+/* Most of the code in this file is
+ * based on arch/ia64/kernel/module.c in Linux kernel
+ */
+
#include <stdio.h>
#include <elf.h>
#include "../../kexec.h"
#include "../../kexec-elf.h"
+#define MAX_LTOFF ((uint64_t) (1 << 22))
+
int machine_verify_elf_rel(struct mem_ehdr *ehdr)
{
if (ehdr->ei_data != ELFDATA2LSB) {
@@ -17,12 +23,40 @@ int machine_verify_elf_rel(struct mem_eh
return 1;
}
+static void
+ia64_patch (uint64_t insn_addr, uint64_t mask, uint64_t val)
+{
+ uint64_t m0, m1, v0, v1, b0, b1, *b = (uint64_t *) (insn_addr & -16);
+# define insn_mask ((1UL << 41) - 1)
+ unsigned long shift;
+
+ b0 = b[0]; b1 = b[1];
+ shift = 5 + 41 * (insn_addr % 16); /* 5 bits of template, then 3 x 41-bit instructions */
+ if (shift >= 64) {
+ m1 = mask << (shift - 64);
+ v1 = val << (shift - 64);
+ } else {
+ m0 = mask << shift; m1 = mask >> (64 - shift);
+ v0 = val << shift; v1 = val >> (64 - shift);
+ b[0] = (b0 & ~m0) | (v0 & m0);
+ }
+ b[1] = (b1 & ~m1) | (v1 & m1);
+}
+
+static inline uint64_t
+bundle (const uint64_t insn)
+{
+ return insn & ~0xfUL;
+}
+
void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type,
void *location, unsigned long address, unsigned long value)
{
+ uint64_t gp_value = ehdr->rel_addr + 0x200000;
switch(r_type) {
case R_IA64_NONE:
break;
+ case R_IA64_SEGREL64LSB:
case R_IA64_DIR64LSB:
*((uint64_t *)location) = value;
break;
@@ -31,15 +65,67 @@ void machine_apply_elf_rel(struct mem_eh
if (value != *((uint32_t *)location))
goto overflow;
break;
- case R_IA64_PCREL21B:
+ case R_IA64_IMM64:
+ ia64_patch((uint64_t)location, 0x01fffefe000UL,
+ /* bit 63 -> 36 */
+ (((value & 0x8000000000000000UL) >> 27)
+ /* bit 21 -> 21 */
+ | ((value & 0x0000000000200000UL) << 0)
+ /* bit 16 -> 22 */
+ | ((value & 0x00000000001f0000UL) << 6)
+ /* bit 7 -> 27 */
+ | ((value & 0x000000000000ff80UL) << 20)
+ /* bit 0 -> 13 */
+ | ((value & 0x000000000000007fUL) << 13)));
+ ia64_patch((uint64_t)location - 1, 0x1ffffffffffUL, value>>22);
+ break;
+ case R_IA64_IMM22:
+ if (value + (1 << 21) >= (1 << 22))
+ die("value out of IMM22 range\n");
+ ia64_patch((uint64_t)location, 0x01fffcfe000UL,
+ /* bit 21 -> 36 */
+ (((value & 0x200000UL) << 15)
+ /* bit 16 -> 22 */
+ | ((value & 0x1f0000UL) << 6)
+ /* bit 7 -> 27 */
+ | ((value & 0x00ff80UL) << 20)
+ /* bit 0 -> 13 */
+ | ((value & 0x00007fUL) << 13) ));
+ break;
+ case R_IA64_PCREL21B: {
+ uint64_t delta = ((int64_t)value - (int64_t)address)/16;
+ if (delta + (1 << 20) >= (1 << 21))
+ die("value out of IMM21B range\n");
+ value = ((int64_t)(value - bundle(address)))/16;
+ ia64_patch((uint64_t)location, 0x11ffffe000UL,
+ (((value & 0x100000UL) << 16) /* bit 20 -> 36 */
+ | ((value & 0x0fffffUL) << 13) /* bit 0 -> 13 */));
+ }
+ break;
+ case R_IA64_LTOFF22X:
+ if (value - gp_value + MAX_LTOFF/2 >= MAX_LTOFF)
+ die("value out of gp relative range");
+ value -= gp_value;
+ ia64_patch((uint64_t)location, 0x01fffcfe000UL,
+ (((value & 0x200000UL) << 15) /* bit 21 -> 36 */
+ |((value & 0x1f0000UL) << 6) /* bit 16 -> 22 */
+ |((value & 0x00ff80UL) << 20) /* bit 7 -> 27 */
+ |((value & 0x00007fUL) << 13) /* bit 0 -> 13 */));
+ break;
+ case R_IA64_LDXMOV:
+ if (value - gp_value + MAX_LTOFF/2 >= MAX_LTOFF)
+ die("value out of gp relative range");
+ ia64_patch((uint64_t)location, 0x1fff80fe000UL, 0x10000000000UL);
+ break;
case R_IA64_LTOFF22:
- case R_IA64_SEGREL64LSB:
+
default:
- die("Unknown rela relocation: %lu\n", r_type);
+ die("Unknown rela relocation: 0x%lx 0x%lx\n",
+ r_type, address);
break;
}
return;
- overflow:
+overflow:
die("overflow in relocation type %lu val %Lx\n",
- r_type, value);
+ r_type, value);
}
diff -urNp kexec-tools-1.101/kexec/arch/ia64/kexec-ia64.c kexec-tools-1.101-ia64/kexec/arch/ia64/kexec-ia64.c
--- kexec-tools-1.101/kexec/arch/ia64/kexec-ia64.c 2005-01-10 23:28:36.000000000 -0700
+++ kexec-tools-1.101-ia64/kexec/arch/ia64/kexec-ia64.c 2006-02-21 14:25:57.000000000 -0700
@@ -27,6 +27,7 @@
#include <stdint.h>
#include <string.h>
#include <getopt.h>
+#include <sched.h>
#include <sys/utsname.h>
#include "../../kexec.h"
#include "../../kexec-syscall.h"
@@ -56,7 +57,7 @@ int get_memory_ranges(struct memory_rang
*/
fprintf(stderr, "Warning assuming memory at 0-64MB is present\n");
memory_ranges = 0;
- memory_range[memory_ranges].start = 0x00010000;
+ memory_range[memory_ranges].start = 0x00100000;
memory_range[memory_ranges].end = 0x10000000;
memory_range[memory_ranges].type = RANGE_RAM;
memory_ranges++;
@@ -76,9 +77,6 @@ void arch_usage(void)
{
}
-static struct {
-} arch_options = {
-};
int arch_process_options(int argc, char **argv)
{
static const struct option options[] = {
@@ -87,8 +85,12 @@ int arch_process_options(int argc, char
};
static const char short_options[] = KEXEC_ARCH_OPT_STR;
int opt;
- unsigned long value;
- char *end;
+
+ /* execute from monarch processor */
+ cpu_set_t affinity;
+ CPU_ZERO(&affinity);
+ CPU_SET(0, &affinity);
+ sched_setaffinity(0, sizeof(affinity), &affinity);
opterr = 0; /* Don't complain about unrecognized options here */
while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) {
@@ -115,32 +117,7 @@ int arch_compat_trampoline(struct kexec_
}
if (strcmp(utsname.machine, "ia64") == 0)
{
- *flags |= KEXEC_ARCH_X86_64;
- }
- else {
- fprintf(stderr, "Unsupported machine type: %s\n",
- utsname.machine);
- return -1;
- }
- return 0;
-}
-
-int arch_compat_trampoline(struct kexec_info *info, unsigned long *flags)
-{
- int result;
- struct utsname utsname;
- result = uname(&utsname);
- if (result < 0) {
- fprintf(stderr, "uname failed: %s\n",
- strerror(errno));
- return -1;
- }
- if (strcmp(utsname.machine, "ia64") == 0)
- {
- /* For compatibility with older patches
- * use KEXEC_ARCH_DEFAULT instead of KEXEC_ARCH_IA64 here.
- */
- *flags |= KEXEC_ARCH_DEFAULT;
+ *flags |= KEXEC_ARCH_IA_64;
}
else {
fprintf(stderr, "Unsupported machine type: %s\n",
diff -urNp kexec-tools-1.101/kexec/kexec.8 kexec-tools-1.101-ia64/kexec/kexec.8
--- kexec-tools-1.101/kexec/kexec.8 2004-12-19 15:27:31.000000000 -0700
+++ kexec-tools-1.101-ia64/kexec/kexec.8 2006-02-21 13:34:49.000000000 -0700
@@ -2,7 +2,7 @@
.\" First parameter, NAME, should be all caps
.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
.\" other parameters are allowed: see man(7), man(1)
-.TH KEXEC-TOOLS 8 "October 13, 2004"
+.TH KEXEC 8 "October 13, 2004"
.\" Please adjust this date whenever revising the manpage.
.\"
.\" Some roff macros, for reference:
@@ -16,30 +16,60 @@
.\" .sp <n> insert n+1 empty lines
.\" for manpage-specific macros, see man(7)
.SH NAME
-kexec-tools \- Tool to load a kernel for warm reboot and initiate a warm reboot
+kexec \- Tool to load a kernel for warm reboot and initiate a warm reboot
.SH SYNOPSIS
-.B kexec-tools
+.B kexec
.RI [ options ] " files" ...
.SH DESCRIPTION
.PP
.\" TeX users may be more comfortable with the \fB<whatever>\fP and
.\" \fI<whatever>\fP escape sequences to invode bold face and italics,
.\" respectively.
-\fBkexec-tools\fP does not have a man page yet. Please use "kexec -h" for help.
+\fBkexec\fP allows one to load another kernel from the currently running
+Linux kernel. Normally one would load a kernel, and possibly an initial
+ramdisk, into the currently running kernel using kexec and then initiate
+a warm reboot by executing kexec again with appropriate option.
.SH OPTIONS
These programs follow the usual GNU command line syntax, with long
options starting with two dashes (`-').
A summary of options is included below.
-For a complete description, see the Info files.
.TP
.B \-h, \-\-help
Show summary of options.
.TP
.B \-v, \-\-version
Show version of program.
-.SH SEE ALSO
+.TP
+.B \-f, \-\-force
+Force an immediate kexec without calling shutdown.
+.TP
+.B \-x, \-\-no-ifdown
+Don't bring down network interfaces. (if used, must be last option specified)
+.TP
+.B \-l, \-\-load
+Load the new kernel into the current kernel.
+.TP
+.B \-p, \-\-load-panic
+Load the new kernel for use on panic.
+.TP
+.B \-u, \-\-unload
+Unload the current kexec target kernel.
+.TP
+.B \-e, \-\-exec
+Execute a currently loaded kernel.
+.TP
+.B \-t, \-\-type=TYPE
+Specify the new kernel is of this type.
+.TP
+.B \-\-mem\-min=<addr>
+Specify the lowest memory addres to load code into.
+.TP
+.B \-\-mem\-max=<addr>
+Specify the highest memory addres to load code into.
+.TP
+There may be additional options supported on individual architectures. Use --help option to see those options.
.SH AUTHOR
-kexec-tools was written by Eric Biederman.
+kexec was written by Eric Biederman.
.PP
-This manual page was written by Khalid Aziz <[email protected]>,
+This manual page was written by Khalid Aziz <[email protected]>,
for the Debian project (but may be used by others).
diff -urNp kexec-tools-1.101/kexec/kexec.c kexec-tools-1.101-ia64/kexec/kexec.c
--- kexec-tools-1.101/kexec/kexec.c 2005-01-13 06:24:29.000000000 -0700
+++ kexec-tools-1.101-ia64/kexec/kexec.c 2006-02-09 15:46:39.000000000 -0700
@@ -187,7 +187,7 @@ unsigned long locate_hole(struct kexec_i
}
/* Compute the free memory ranges */
- max_mem_ranges = memory_ranges + (info->nr_segments -1);
+ max_mem_ranges = memory_ranges + info->nr_segments;
mem_range = malloc(max_mem_ranges *sizeof(struct memory_range));
mem_ranges = 0;
diff -urNp kexec-tools-1.101/kexec/Makefile kexec-tools-1.101-ia64/kexec/Makefile
--- kexec-tools-1.101/kexec/Makefile 2004-12-21 12:36:39.000000000 -0700
+++ kexec-tools-1.101-ia64/kexec/Makefile 2006-02-21 13:36:18.000000000 -0700
@@ -27,6 +27,7 @@ KEXEC_SRCS:= $(KEXEC_C_SRCS) $(KEXEC_S_S
KEXEC_OBJS:= $(KEXEC_C_OBJS) $(KEXEC_S_OBJS)
KEXEC_DEPS:= $(KEXEC_C_DEPS) $(KEXEC_S_DEPS)
KEXEC:= $(SBINDIR)/kexec
+KEXEC_MANPAGE:= $(MANDIR)/man8/kexec.8
include $(KEXEC_DEPS)
@@ -50,6 +51,9 @@ $(KEXEC): $(KEXEC_OBJS) $(UTIL_LIB)
mkdir -p $(@D)
$(CC) $(KCFLAGS) -o $@ $(KEXEC_OBJS) $(UTIL_LIB) $(LIBS)
+$(KEXEC_MANPAGE): kexec/kexec.8
+ $(MKDIR) -p $(MANDIR)/man8
+ cp kexec/kexec.8 $(KEXEC_MANPAGE)
echo::
@echo "KEXEC_C_SRCS $(KEXEC_C_SRCS)"
@echo "KEXEC_C_DEPS $(KEXEC_C_DEPS)"
diff -urNp kexec-tools-1.101/Makefile kexec-tools-1.101-ia64/Makefile
--- kexec-tools-1.101/Makefile 2005-02-18 05:26:09.000000000 -0700
+++ kexec-tools-1.101-ia64/Makefile 2006-02-21 13:37:40.000000000 -0700
@@ -43,6 +43,7 @@ PKGLIBDIR=$(LIBDIR)/$(PACKAGE)
PKGINCLUDEIR=$(INCLUDEDIR)/$(PACKAGE)
MAN_PAGES:= kexec/kexec.8
+MAN_PAGES+= kdump/kdump.8
BINARIES_i386:= $(SBINDIR)/kexec $(PKGLIBDIR)/kexec_test
BINARIES_x86_64:=$(SBINDIR)/kexec $(PKGLIBDIR)/kexec_test
BINARIES:=$(SBINDIR)/kexec $(SBINDIR)/kdump $(BINARIES_$(ARCH))
diff -urNp kexec-tools-1.101/purgatory/arch/ia64/entry.S kexec-tools-1.101-ia64/purgatory/arch/ia64/entry.S
--- kexec-tools-1.101/purgatory/arch/ia64/entry.S 1969-12-31 17:00:00.000000000 -0700
+++ kexec-tools-1.101-ia64/purgatory/arch/ia64/entry.S 2006-02-09 15:46:39.000000000 -0700
@@ -0,0 +1,85 @@
+/*
+ * purgatory: setup code
+ *
+ * Copyright (C) 2005 Zou Nan hai ([email protected])
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation (version 2 of the License).
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+.global __dummy_efi_function
+.align 32
+.proc __dummy_efi_function
+__dummy_efi_function:
+ mov r8=r0;;
+ br.ret.sptk.many rp;;
+.global __dummy_efi_function_end
+__dummy_efi_function_end:
+.endp __dummy_efi_function
+
+.global purgatory_start
+.align 32
+.proc purgatory_start
+purgatory_start:
+ movl r2=__gp_value;;
+ ld8 gp=[r2];;
+ br.call.sptk.many b0=purgatory
+ ;;
+ alloc r2 = ar.pfs, 0, 0, 5, 0
+ ;;
+ mov out0=r28
+
+ movl r2=__command_line;;
+ ld8 out1=[r2];;
+ movl r2=__command_line_len;;
+ ld8 out2=[r2];;
+ movl r2=__ramdisk_base;;
+ ld8 out3=[r2];;
+ movl r2=__ramdisk_size;;
+ ld8 out4=[r2];;
+ br.call.sptk.many b0=ia64_env_setup
+ movl r10=__kernel_entry;;
+ ld8 r14=[r10];;
+ mov b6=r14;;
+ mov ar.lc=r0
+ mov ar.ec=r0
+ cover;;
+ invala;;
+ br.call.sptk.many b0=b6
+.endp purgatory_start
+
+.align 32
+.global __kernel_entry
+.size __kernel_entry, 8
+__kernel_entry:
+ data8 0x0
+.global __command_line
+.size __command_line, 8
+__command_line:
+ data8 0x0
+.global __command_line_len
+.size __command_line_len, 8
+__command_line_len:
+ data8 0x0
+.global __ramdisk_base
+.size __ramdisk_base, 8
+__ramdisk_base:
+ data8 0x0
+.global __ramdisk_size
+.size __ramdisk_size, 8
+__ramdisk_size:
+ data8 0x0
+.global __gp_value
+.size __gp_value, 8
+__gp_value:
+ data8 0x0
diff -urNp kexec-tools-1.101/purgatory/arch/ia64/include/arch/io.h kexec-tools-1.101-ia64/purgatory/arch/ia64/include/arch/io.h
--- kexec-tools-1.101/purgatory/arch/ia64/include/arch/io.h 1969-12-31 17:00:00.000000000 -0700
+++ kexec-tools-1.101-ia64/purgatory/arch/ia64/include/arch/io.h 2006-02-14 15:28:09.000000000 -0700
@@ -0,0 +1,25 @@
+#ifndef ARCH_IO_H
+#define ARCH_IO_H
+
+#include <stdint.h>
+/* Helper functions for directly doing I/O */
+
+extern inline uint8_t inb(void *port)
+{
+ volatile unsigned char *addr = (unsigned char *)port;
+ uint8_t result;
+
+ result = *addr;
+ asm volatile ("mf.a"::: "memory");
+ return result;
+}
+
+extern inline void outb (uint8_t value, void *port)
+{
+ volatile unsigned char *addr = (unsigned char *)port;
+
+ *addr = value;
+ asm volatile ("mf.a"::: "memory");
+}
+
+#endif /* ARCH_IO_H */
diff -urNp kexec-tools-1.101/purgatory/arch/ia64/Makefile kexec-tools-1.101-ia64/purgatory/arch/ia64/Makefile
--- kexec-tools-1.101/purgatory/arch/ia64/Makefile 2004-12-20 15:44:22.000000000 -0700
+++ kexec-tools-1.101-ia64/purgatory/arch/ia64/Makefile 2006-02-09 15:46:39.000000000 -0700
@@ -1,8 +1,8 @@
#
# Purgatory ia64
#
-
-PURGATORY_S_SRCS+=
+PCFLAGS += -ffixed-r28
+PURGATORY_S_SRCS+= purgatory/arch/ia64/entry.S
PURGATORY_C_SRCS+= purgatory/arch/ia64/purgatory-ia64.c
PURGATORY_C_SRCS+= purgatory/arch/ia64/console-ia64.c
PURGATORY_C_SRCS+=
diff -urNp kexec-tools-1.101/purgatory/arch/ia64/purgatory-ia64.c kexec-tools-1.101-ia64/purgatory/arch/ia64/purgatory-ia64.c
--- kexec-tools-1.101/purgatory/arch/ia64/purgatory-ia64.c 2004-12-20 15:45:21.000000000 -0700
+++ kexec-tools-1.101-ia64/purgatory/arch/ia64/purgatory-ia64.c 2006-02-09 15:46:39.000000000 -0700
@@ -1,7 +1,113 @@
#include <purgatory.h>
+#include <stdint.h>
+#include <string.h>
#include "purgatory-ia64.h"
+#define PAGE_OFFSET 0xe000000000000000
+
+typedef struct {
+ uint64_t signature;
+ uint32_t revision;
+ uint32_t headersize;
+ uint32_t crc32;
+ uint32_t reserved;
+} efi_table_hdr_t;
+
+typedef struct {
+ efi_table_hdr_t hdr;
+ unsigned long get_time;
+ unsigned long set_time;
+ unsigned long get_wakeup_time;
+ unsigned long set_wakeup_time;
+ unsigned long set_virtual_address_map;
+ unsigned long convert_pointer;
+ unsigned long get_variable;
+ unsigned long get_next_variable;
+ unsigned long set_variable;
+ unsigned long get_next_high_mono_count;
+ unsigned long reset_system;
+} efi_runtime_services_t;
+
+typedef struct {
+ efi_table_hdr_t hdr;
+ unsigned long fw_vendor; /* physical addr of CHAR16 vendor string
+ */
+ uint32_t fw_revision;
+ unsigned long con_in_handle;
+ unsigned long con_in;
+ unsigned long con_out_handle;
+ unsigned long con_out;
+ unsigned long stderr_handle;
+ unsigned long stderr;
+ unsigned long runtime;
+ unsigned long boottime;
+ unsigned long nr_tables;
+ unsigned long tables;
+} efi_system_table_t;
+
+struct ia64_boot_param {
+ uint64_t command_line; /* physical address of command line arguments */
+ uint64_t efi_systab; /* physical address of EFI system table */
+ uint64_t efi_memmap; /* physical address of EFI memory map */
+ uint64_t efi_memmap_size; /* size of EFI memory map */
+ uint64_t efi_memdesc_size; /* size of an EFI memory map descriptor */
+ uint32_t efi_memdesc_version; /* memory descriptor version */
+ struct {
+ uint16_t num_cols; /* number of columns on console output device */
+ uint16_t num_rows; /* number of rows on console output device */
+ uint16_t orig_x; /* cursor's x position */
+ uint16_t orig_y; /* cursor's y position */
+ } console_info;
+ uint64_t fpswa; /* physical address of the fpswa interface */
+ uint64_t initrd_start;
+ uint64_t initrd_size;
+};
+
void setup_arch(void)
{
/* Nothing for now */
}
+inline unsigned long PA(unsigned long addr)
+{
+ return addr - PAGE_OFFSET;
+}
+
+void flush_icache_range(char *start, unsigned long len)
+{
+ unsigned long i;
+ for (i = 0;i < len; i += 32)
+ asm volatile("fc.i %0"::"r"(start+i):"memory");
+ asm volatile (";;sync.i;;":::"memory");
+ asm volatile ("srlz.i":::"memory");
+}
+
+extern char __dummy_efi_function[], __dummy_efi_function_end[];
+
+void ia64_env_setup(struct ia64_boot_param *boot_param,
+ uint64_t command_line, uint64_t command_line_len,
+ uint64_t ramdisk_base, uint64_t ramdisk_size)
+{
+ unsigned long len;
+ efi_system_table_t *systab;
+ efi_runtime_services_t *runtime;
+ unsigned long *set_virtual_address_map;
+
+ // patch efi_runtime->set_virtual_address_map to a
+ // dummy function
+ len = __dummy_efi_function_end - __dummy_efi_function;
+ memcpy((char *)command_line + command_line_len, __dummy_efi_function,
+ len);
+ systab = (efi_system_table_t *)boot_param->efi_systab;
+ runtime = (efi_runtime_services_t *)PA(systab->runtime);
+ set_virtual_address_map =
+ (unsigned long *)PA(runtime->set_virtual_address_map);
+ *(set_virtual_address_map)=
+ (unsigned long)((char *)command_line + command_line_len);
+ flush_icache_range((char *)command_line+command_line_len, len);
+
+ boot_param->command_line = command_line;
+ boot_param->console_info.orig_x = 0;
+ boot_param->console_info.orig_y = 0;
+ boot_param->initrd_start = ramdisk_base;
+ boot_param->initrd_size = ramdisk_size;
+}
diff -urNp kexec-tools-1.101/purgatory/Makefile kexec-tools-1.101-ia64/purgatory/Makefile
--- kexec-tools-1.101/purgatory/Makefile 2005-01-08 15:36:32.000000000 -0700
+++ kexec-tools-1.101-ia64/purgatory/Makefile 2006-02-14 14:40:16.000000000 -0700
@@ -6,7 +6,7 @@
# There is probably a cleaner way to do this but for now this
# should keep us from accidentially include unsafe library functions
# or headers.
-PCFLAGS:=-Wall -Os \
+PCFLAGS:=-Wall -Os -g \
-I$(shell $(CC) -print-file-name=include) \
-Ipurgatory/include -Ipurgatory/arch/$(ARCH)/include \
$(CPPFLAGS)
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