20 lines
782 B
Diff
20 lines
782 B
Diff
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qemu-spoof: CPU microcode revision (IA32_UCODE_REV)
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QEMU/KVM default ucode_rev (Intel 0x1_00000000, AMD 0x01000065) is constant and
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recognisable. Route it through spoof_cpu_microcode, which returns a plausible
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vendor-positioned revision (Intel in MSR bits 63:32, AMD in 31:0) anchored to the
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persona CPU vendor. Inert unless a spoof-seed is set. (target/i386 spoof.h include
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is added by 0013.)
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diff --git a/target/i386/cpu.c b/target/i386/cpu.c
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index c6fd1dc..96cbedc 100644
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--- a/target/i386/cpu.c
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+++ b/target/i386/cpu.c
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@@ -10026,6 +10026,7 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
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} else {
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cpu->ucode_rev = 0x100000000ULL;
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}
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+ cpu->ucode_rev = spoof_cpu_microcode(cpu->ucode_rev); /* qemu-spoof */
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}
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/*
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