From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LWWpU-0002ln-Vd for qemu-devel@nongnu.org; Mon, 09 Feb 2009 09:09:44 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LWWpU-0002lB-BL for qemu-devel@nongnu.org; Mon, 09 Feb 2009 09:09:44 -0500 Received: from [199.232.76.173] (port=51298 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LWWpT-0002ko-Ut for qemu-devel@nongnu.org; Mon, 09 Feb 2009 09:09:44 -0500 Received: from mx2.redhat.com ([66.187.237.31]:43151) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1LWWpS-0000RF-O5 for qemu-devel@nongnu.org; Mon, 09 Feb 2009 09:09:43 -0500 From: Amit Shah Date: Mon, 9 Feb 2009 19:39:22 +0530 Message-Id: <1234188563-32163-3-git-send-email-amit.shah@redhat.com> In-Reply-To: <1234188563-32163-2-git-send-email-amit.shah@redhat.com> References: <1234188563-32163-1-git-send-email-amit.shah@redhat.com> <1234188563-32163-2-git-send-email-amit.shah@redhat.com> Subject: [Qemu-devel] [PATCH] KVM: Fetch sub-leaf cpuid values for functions 4, 0xb, 0xd. Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: aliguori@us.ibm.com Cc: Amit Shah , qemu-devel@nongnu.org CPUID functions 4, 0xb and 0xd have sub-leaf values which depend on the input value of ECX. Store these values as well. Signed-off-by: Amit Shah --- qemu/target-i386/kvm.c | 53 +++++++++++++++++++++++++++++++++++------------ 1 files changed, 39 insertions(+), 14 deletions(-) diff --git a/qemu/target-i386/kvm.c b/qemu/target-i386/kvm.c index 123f7d2..a7ff14f 100644 --- a/qemu/target-i386/kvm.c +++ b/qemu/target-i386/kvm.c @@ -36,10 +36,10 @@ int kvm_arch_init_vcpu(CPUState *env) { struct { - struct kvm_cpuid cpuid; - struct kvm_cpuid_entry entries[100]; + struct kvm_cpuid2 cpuid; + struct kvm_cpuid_entry2 entries[100]; } __attribute__((packed)) cpuid_data; - uint32_t limit, i, cpuid_i; + uint32_t limit, i, j, cpuid_i; uint32_t eax, ebx, ecx, edx; cpuid_i = 0; @@ -48,21 +48,46 @@ int kvm_arch_init_vcpu(CPUState *env) limit = eax; for (i = 0; i <= limit; i++) { - struct kvm_cpuid_entry *c = &cpuid_data.entries[cpuid_i++]; - - cpu_x86_cpuid(env, i, 0, &eax, &ebx, &ecx, &edx); - c->function = i; - c->eax = eax; - c->ebx = ebx; - c->ecx = ecx; - c->edx = edx; + struct kvm_cpuid_entry2 *c = &cpuid_data.entries[cpuid_i++]; + + switch (i) { + case 4: + case 0xb: + case 0xd: + for (j = 0; ; j++) { + cpu_x86_cpuid(env, i, j, &eax, &ebx, &ecx, &edx); + c->function = i; + c->flags = KVM_CPUID_FLAG_SIGNIFCANT_INDEX; + c->index = j; + c->eax = eax; + c->ebx = ebx; + c->ecx = ecx; + c->edx = edx; + c = &cpuid_data.entries[++cpuid_i]; + + if (i == 4 && eax == 0) + break; + if (i == 0xb && !(ecx & 0xff00)) + break; + if (i == 0xd && eax == 0) + break; + } + break; + default: + cpu_x86_cpuid(env, i, 0, &eax, &ebx, &ecx, &edx); + c->function = i; + c->eax = eax; + c->ebx = ebx; + c->ecx = ecx; + c->edx = edx; + break; + } } - cpu_x86_cpuid(env, 0x80000000, 0, &eax, &ebx, &ecx, &edx); limit = eax; for (i = 0x80000000; i <= limit; i++) { - struct kvm_cpuid_entry *c = &cpuid_data.entries[cpuid_i++]; + struct kvm_cpuid_entry2 *c = &cpuid_data.entries[cpuid_i++]; cpu_x86_cpuid(env, i, 0, &eax, &ebx, &ecx, &edx); c->function = i; @@ -74,7 +99,7 @@ int kvm_arch_init_vcpu(CPUState *env) cpuid_data.cpuid.nent = cpuid_i; - return kvm_vcpu_ioctl(env, KVM_SET_CPUID, &cpuid_data); + return kvm_vcpu_ioctl(env, KVM_SET_CPUID2, &cpuid_data); } static int kvm_has_msr_star(CPUState *env) -- 1.6.0.6