[187/200] KVM: SVM: Report emulated SVM features to userspace
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From: Greg KH on 1 Jul 2010 17:30 2.6.34-stable review patch. If anyone has any objections, please let me know. ------------------ From: Joerg Roedel <joerg.roedel(a)amd.com> This patch implements the reporting of the emulated SVM features to userspace instead of the real hardware capabilities. Every real hardware capability needs emulation in nested svm so the old behavior was broken. Cc: stable(a)kernel.org Signed-off-by: Joerg Roedel <joerg.roedel(a)amd.com> Signed-off-by: Avi Kivity <avi(a)redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de> (Cherry-picked from commit c2c63a493924e09a1984d1374a0e60dfd54fc0b0) --- arch/x86/kvm/svm.c | 10 ++++++++++ 1 file changed, 10 insertions(+) --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2909,6 +2909,16 @@ static void svm_cpuid_update(struct kvm_ static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry) { + switch (func) { + case 0x8000000A: + entry->eax = 1; /* SVM revision 1 */ + entry->ebx = 8; /* Lets support 8 ASIDs in case we add proper + ASID emulation to nested SVM */ + entry->ecx = 0; /* Reserved */ + entry->edx = 0; /* Do not support any additional features */ + + break; + } } static const struct trace_print_flags svm_exit_reasons_str[] = { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |