From cb48748af7dfd7654323eb839d1f853ffa873652 Mon Sep 17 00:00:00 2001 From: luofei Date: Thu, 20 Jan 2022 03:46:34 -0500 Subject: [PATCH] i386: Set MCG_STATUS_RIPV bit for mce SRAR error In the physical machine environment, when a SRAR error occurs, the IA32_MCG_STATUS RIPV bit is set, but qemu does not set this bit. When qemu injects an SRAR error into virtual machine, the virtual machine kernel just call do_machine_check() to kill the current task, but not call memory_failure() to isolate the faulty page, which will cause the faulty page to be allocated and used repeatedly. If used by the virtual machine kernel, it will cause the virtual machine to crash Signed-off-by: luofei Message-Id: <20220120084634.131450-1-luofei@unicloud.com> Signed-off-by: Paolo Bonzini --- target/i386/kvm/kvm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 7396b430d7..9cf8e03669 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -569,7 +569,7 @@ static void kvm_mce_inject(X86CPU *cpu, hwaddr paddr, int code) if (code == BUS_MCEERR_AR) { status |= MCI_STATUS_AR | 0x134; - mcg_status |= MCG_STATUS_EIPV; + mcg_status |= MCG_STATUS_RIPV | MCG_STATUS_EIPV; } else { status |= 0xc0; mcg_status |= MCG_STATUS_RIPV; -- 2.11.0