On 14 Jan 2021, David Greenaway wrote:
> This patch fixes a translation bug for a subset of x86 BMI instructions
> such as the following: [...]
Gentle ping.
The patch is up at:
https://patchwork.kernel.org/project/qemu-devel/patch/20210114063958.1508050-1-dgreena...@google.com/
if that
This patch removes the incorrect check in "gen_sse" that causes the
exception to be generated. For the non-BMI cases, the check is
redundant: prefixes are already checked at line 3696.
Buglink: https://bugs.launchpad.net/qemu/+bug/1748296
Signed-off-by: David Greenaway
---
I'm
I hit this today on QEMU head. The problem appears to crop up when:
1. Decoding a VEX instruction (see [1]) that uses the 0x66 mandatory
prefix; and
2. The OSFXSR bit in CR4 is clear (that is, SSE is disabled)
This means that x86_64 instructions such as:
c4 e2 f9 f7 c0
