| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Sun, 1 Apr 2007 17:35:26 +0300 From: Avi Kivity <avi@...ranet.com> To: kvm-devel@...ts.sourceforge.net Cc: linux-kernel@...r.kernel.org, Sergey Kiselev <sergey.kiselev@...el.com>, Avi Kivity <avi@...ranet.com> Subject: [PATCH 29/41] KVM: Handle writes to MCG_STATUS msr From: Sergey Kiselev <sergey.kiselev@...el.com> Some older (~2.6.7) kernels write MCG_STATUS register during kernel boot (mce_clear_all() function, called from mce_init()). It's not currently handled by kvm and will cause it to inject a GPF. Following patch adds a "nop" handler for this. Signed-off-by: Sergey Kiselev <sergey.kiselev@...el.com> Signed-off-by: Avi Kivity <avi@...ranet.com> --- drivers/kvm/kvm_main.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 12c3388..1ef5e9a 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -1467,6 +1467,10 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data) printk(KERN_WARNING "%s: MSR_IA32_MC0_STATUS 0x%llx, nop\n", __FUNCTION__, data); break; + case MSR_IA32_MCG_STATUS: + printk(KERN_WARNING "%s: MSR_IA32_MCG_STATUS 0x%llx, nop\n", + __FUNCTION__, data); + break; case MSR_IA32_UCODE_REV: case MSR_IA32_UCODE_WRITE: case 0x200 ... 0x2ff: /* MTRRs */ -- 1.5.0.5 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists