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target-i386: Add NMI interception to SVM

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Check for SVM interception prior to injecting an NMI. Tested via the
Jailhouse hypervisor.

Backports commit 02f7fd25a446a220905c2e5cb0fc3655d7f63b29 from qemu
This commit is contained in:
Jan Kiszka 2018-07-03 01:24:29 -04:00 committed by Lioncash
parent b7e2e6ec04
commit 7c01627388
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GPG Key ID: 4E3C3CC1031BA9C7
1 changed files with 1 additions and 0 deletions
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qemu/target/i386/seg_helper.c
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@ -1337,6 +1337,7 @@ bool x86_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
ret = true;
} else if ((interrupt_request & CPU_INTERRUPT_NMI) &&
!(env->hflags2 & HF2_NMI_MASK)) {
cpu_svm_check_intercept_param(env, SVM_EXIT_NMI, 0, 0);
cs->interrupt_request &= ~CPU_INTERRUPT_NMI;
env->hflags2 |= HF2_NMI_MASK;
do_interrupt_x86_hardirq(env, EXCP02_NMI, 1);