[PATCH] ntoskrnl.exe: Return zero for unknown msr registers.
rdmsr should fault if called with the register not supported by CPU. But until we want to support the full range of CPU specific registers returning zero is probably a better fallback. Signed-off-by: Paul Gofman <pgofman(a)codeweavers.com> --- dlls/ntoskrnl.exe/instr.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/dlls/ntoskrnl.exe/instr.c b/dlls/ntoskrnl.exe/instr.c index 68140c09ef..44f2ed4f51 100644 --- a/dlls/ntoskrnl.exe/instr.c +++ b/dlls/ntoskrnl.exe/instr.c @@ -815,7 +815,11 @@ static DWORD emulate_instruction( EXCEPTION_RECORD *rec, CONTEXT *context ) context->Rax = (ULONG)syscall_address; break; } - default: return ExceptionContinueSearch; + default: + FIXME("reg %#x, returning 0.\n", reg); + context->Rdx = 0; + context->Rax = 0; + break; } context->Rip += prefixlen + 2; return ExceptionContinueExecution; -- 2.26.2
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Paul Gofman