Configuring a guest with < CONFIG_M586TSC reveals an lguest bug: the
TSC code expects to see the TSC capability bit, but we weren't setting
up the capabilities until much later in check_bugs ->
identify_boot_cpu -> identify_boot_cpu.
Do the same thing as Xen and the head.S native code: populate the
first capability word before start_kernel().
Signed-off-by: Rusty Russell <[email protected]>
diff -r 7743cd1639b7 drivers/lguest/lguest.c
--- a/drivers/lguest/lguest.c Thu Jun 28 23:21:41 2007 +1000
+++ b/drivers/lguest/lguest.c Fri Jun 29 06:23:59 2007 +1000
@@ -598,6 +598,9 @@ __init void lguest_init(void *boot)
paravirt_disable_iospace();
cpu_detect(&new_cpu_data);
+ /* head.S usually sets up the first capability word, so do it here. */
+ new_cpu_data.x86_capability[0] = cpuid_edx(1);
+
/* Math is always hard! */
new_cpu_data.hard_math = 1;
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
