similar to: instrction emulation problem

With the x86 instruction emulator no pretty complete, I''d like to re-submit this patch to support cmpxchg16b on x86-64 and at once rename the underlying emulator callback function pointer (making clear that if implemented, it is to operate on two longs rather than two 32-bit values). At the same time it fixes an apparently wrong emulator context initialization in the shadow code.

Just saw such warnings like: ... (XEN) printk: 387824 messages suppressed. (XEN) seg_fixup.c:282: Taken fault at bad CS c000, IP 00003aab (XEN) seg_fixup.c:282: Taken fault at bad CS c000, IP 00003ab2 (XEN) seg_fixup.c:282: Taken fault at bad CS c000, IP 00003aab (XEN) seg_fixup.c:282: Taken fault at bad CS c000, IP 00003ab2 ... It only jumped out when switching to/off X-windows within dom0, and

From: Mihai Don?u <mdontu at bitdefender.com> This is needed in order to be able to support guest code that uses movsd to write into pages that are marked for write tracking. Signed-off-by: Mihai Don?u <mdontu at bitdefender.com> Signed-off-by: Adalbert Laz?r <alazar at bitdefender.com> --- arch/x86/kvm/emulate.c | 32 +++++++++++++++++++++++++++----- 1 file changed, 27

dear everyone system:windows XP R2.13.0 I download the windows binary from website and successfully install it ,because I use a proxy server ,when I follow the instrction as follows: I set a system property R_HOME=C:\Program Files\R\R-2.13.0 " R_HOME\bin\i386\Rgui.exe http_proxy=http://211.83.105.140:808/" error:: '\i' is an unrecognized escape in character string starting

This patch might be obsolete thanks to single-stepping. Signed-off-by: Adalbert Laz?r <alazar at bitdefender.com> --- arch/x86/kvm/x86.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 2c06de73a784..06f44ce8ed07 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6311,7 +6311,8 @@ static bool

From: Mihai Don?u <mdontu at bitdefender.com> It can happened to end up emulating the VMCALL instruction as a result of the handling of an EPT write fault. In this situation, the emulator will try to unconditionally patch the correct hypercall opcode bytes using emulator_write_emulated(). However, this last call uses the fault GPA (if available) or walks the guest page tables at RIP,

From: Mihai Don?u <mdontu at bitdefender.com> It can happened to end up emulating the VMCALL instruction as a result of the handling of an EPT write fault. In this situation, the emulator will try to unconditionally patch the correct hypercall opcode bytes using emulator_write_emulated(). However, this last call uses the fault GPA (if available) or walks the guest page tables at RIP,

From: Mihai Don?u <mdontu at bitdefender.com> It can happened for us to end up emulating the VMCALL instruction as a result of the handling of an EPT write fault. In this situation, the emulator will try to unconditionally patch the correct hypercall opcode bytes using emulator_write_emulated(). However, this last call uses the fault GPA (if available) or walks the guest page tables at RIP,

On Fri, Aug 09, 2019 at 07:00:24PM +0300, Adalbert Laz?r wrote: > This patch might be obsolete thanks to single-stepping. sooo should it be skipped from this large patchset to easy review? > > Signed-off-by: Adalbert Laz?r <alazar at bitdefender.com> > --- > arch/x86/kvm/x86.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git

From: Mihai Don?u <mdontu at bitdefender.com> This is needed because the emulator calls the page tracking code irrespective of the current VM-exit reason or available information. Signed-off-by: Mihai Don?u <mdontu at bitdefender.com> Signed-off-by: Adalbert Laz?r <alazar at bitdefender.com> --- arch/x86/include/asm/kvm_host.h | 2 +-

# HG changeset patch # User Patrick Colp <Patrick.Colp@citrix.com> # Date 1249555177 -3600 # Node ID 684c8fc69d658d058246eb9edfc8eba187ae6f2c # Parent 68e8b8379244e293c55875e7dc3692fc81d3d212 hvm emul: fix cmpxchg emulation to use an atomic operation. Currently HVM cmpxchg emulation is done by doing a normal emulated write, which is not atomic. This patch changes it to use a cmpxchg

I want to insert new alloca Instruction after existing alloca Instruction in llvm pass so what attribute to be passed at last in following newallocaI = new AllocaInst(llvm::Type::getInt32PtrTy(context,0), //type 0, // ArraySize 8, // Alignment

Hi All I am a greenhand for LLVM. I find the LLVM generate SSE instrctions for floating pointing computation, is there some method or options to let it generate x87 instructions? Thanks Simon -- >From : Simon.Zhou at PPI, Fudan University -------------- next part -------------- An HTML attachment was scrubbed... URL:

Dear Mentors, Please help me to understand our plan to implement Interprocedural Register allocator by propogating register usage info. While writing this mail I am considering all previous discussion over llvm-dev and IRC. 1) A MachineFunction pass to be executed POST-RA to collect the information about the used Registers. 2) An Immutable pass which will store reg usage info collected by

> On May 24, 2016, at 9:17 PM, vivek pandya <vivekvpandya at gmail.com> wrote: > > Dear Mentors, > > Please help me to understand our plan to implement Interprocedural Register allocator by propogating register usage info. While writing this mail I am considering all previous discussion over llvm-dev and IRC. > > 1) A MachineFunction pass to be executed POST-RA to

> On May 24, 2016, at 10:08 PM, vivek pandya <vivekvpandya at gmail.com> wrote: > > > > On Wed, May 25, 2016 at 10:08 AM, Mehdi Amini <mehdi.amini at apple.com <mailto:mehdi.amini at apple.com>> wrote: > >> On May 24, 2016, at 9:17 PM, vivek pandya <vivekvpandya at gmail.com <mailto:vivekvpandya at gmail.com>> wrote: >> >> Dear

On Wed, May 25, 2016 at 10:08 AM, Mehdi Amini <mehdi.amini at apple.com> wrote: > > On May 24, 2016, at 9:17 PM, vivek pandya <vivekvpandya at gmail.com> wrote: > > Dear Mentors, > > Please help me to understand our plan to implement Interprocedural > Register allocator by propogating register usage info. While writing this > mail I am considering all previous

Sent from my iPhone > On May 24, 2016, at 11:04 PM, vivek pandya <vivekvpandya at gmail.com> wrote: > > > >> On Wed, May 25, 2016 at 10:46 AM, Mehdi Amini <mehdi.amini at apple.com> wrote: >> >>> On May 24, 2016, at 10:08 PM, vivek pandya <vivekvpandya at gmail.com> wrote: >>> >>> >>> >>> On Wed, May 25,

On Wed, May 25, 2016 at 10:46 AM, Mehdi Amini <mehdi.amini at apple.com> wrote: > > On May 24, 2016, at 10:08 PM, vivek pandya <vivekvpandya at gmail.com> wrote: > > > > On Wed, May 25, 2016 at 10:08 AM, Mehdi Amini <mehdi.amini at apple.com> > wrote: > >> >> On May 24, 2016, at 9:17 PM, vivek pandya <vivekvpandya at gmail.com> wrote:

Hi all, I am having trouble booting the ttylinux-xen guest os. I followed the example in the manual and exchanged the values to match my system. I also searched/read this mailing archive. This is the start command: ''xm create -c ttyvm'' where ttyvm is the config file It starts booting and then halts with the error: Root-NFS: No NFS server available, giving up. VFS: Unable to