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18fa000ae4
svm_vcpu_reset() was not properly resetting the contents of the guest-visible cr0 register, causing the following issue: https://bugzilla.redhat.com/show_bug.cgi?id=525699 Without resetting cr0 properly, the vcpu was running the SIPI bootstrap routine with paging enabled, making the vcpu get a pagefault exception while trying to run it. Instead of setting vmcb->save.cr0 directly, the new code just resets kvm->arch.cr0 and calls kvm_set_cr0(). The bits that were set/cleared on vmcb->save.cr0 (PG, WP, !CD, !NW) will be set properly by svm_set_cr0(). kvm_set_cr0() is used instead of calling svm_set_cr0() directly to make sure kvm_mmu_reset_context() is called to reset the mmu to nonpaging mode. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com> |
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.. | ||
boot | ||
configs | ||
crypto | ||
ia32 | ||
include/asm | ||
kernel | ||
kvm | ||
lguest | ||
lib | ||
math-emu | ||
mm | ||
oprofile | ||
pci | ||
power | ||
vdso | ||
video | ||
xen | ||
Kbuild | ||
Kconfig | ||
Kconfig.cpu | ||
Kconfig.debug | ||
Makefile | ||
Makefile_32.cpu |