H. Peter Anvin wrote:
How does this logic work when the instruction emulated is an STI or
MOV SS instruction? In particular, when does
GUEST_INTERRUPTIBILITY_INFO sets set to reflect the *blocking* operation?
The processor sets it when emulating an sti or mov ss instruction. We
ought to
Glauber Costa wrote:
How does this logic work when the instruction emulated is an STI or MOV
SS instruction? In particular, when does GUEST_INTERRUPTIBILITY_INFO
sets set to reflect the *blocking* operation?
mov ss is a non-issue, since it is executed natively.
Except in big real
Glauber Costa wrote:
we currently unblock shadow interrupt state when we skip an instruction,
but failing to do so when we actually emulate one. This blocks interrupts
in key instruction blocks, in particular sti; hlt; sequences
Without this patch, I cannot boot gpxe option roms at vmx
On Wed, Apr 08, 2009 at 11:16:05AM -0700, H. Peter Anvin wrote:
Glauber Costa wrote:
we currently unblock shadow interrupt state when we skip an instruction,
but failing to do so when we actually emulate one. This blocks interrupts
in key instruction blocks, in particular sti; hlt; sequences
Glauber Costa wrote:
mov ss is a non-issue, since it is executed natively.
In real mode?
-hpa
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On Wed, Apr 08, 2009 at 11:31:54AM -0700, H. Peter Anvin wrote:
Glauber Costa wrote:
mov ss is a non-issue, since it is executed natively.
In real mode?
it seems so, to me. But I can be wrong. If I am, then I'd
propose the same path I proposed for sti for this.
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On Wed, Apr 08, 2009 at 01:57:32PM -0400, Glauber Costa wrote:
we currently unblock shadow interrupt state when we skip an instruction,
but failing to do so when we actually emulate one. This blocks interrupts
in key instruction blocks, in particular sti; hlt; sequences
Without this patch, I
On Wed, Apr 08, 2009 at 03:43:06PM -0300, Glauber Costa wrote:
On Wed, Apr 08, 2009 at 11:31:54AM -0700, H. Peter Anvin wrote:
Glauber Costa wrote:
mov ss is a non-issue, since it is executed natively.
In real mode?
it seems so, to me. But I can be wrong. If I am, then I'd
propose the
