- to alter these settings), in the absence of an
official position on the issue from the original altp2m designers.
Signed-off-by: Razvan Cojocaru
Signed-off-by: Petre Pircalabu
---
Changed since v2:
* Added support for compat arguments translation
Changed since v3:
* Replaced
- to alter these settings), in the absence of an
official position on the issue from the original altp2m designers.
Signed-off-by: Razvan Cojocaru
Signed-off-by: Petre Pircalabu
---
Changed since v2:
* Added support for compat arguments translation
Changed since v3:
* Replaced
- to alter these settings), in the absence of an
official position on the issue from the original altp2m designers.
Signed-off-by: Razvan Cojocaru
Signed-off-by: Petre Pircalabu
---
Changed since v2:
* Added support for compat arguments translation
Changed since v3:
* Replaced
- to alter these settings), in the absence of an
official position on the issue from the original altp2m designers.
Signed-off-by: Razvan Cojocaru
Signed-off-by: Petre Pircalabu
---
Changed since v2:
* Added support for compat arguments translation
Changed since v3:
* Replaced
- to alter these settings), in the absence of an
official position on the issue from the original altp2m designers.
Signed-off-by: Razvan Cojocaru
Signed-off-by: Petre Pircalabu
---
Changed since v2:
* Added support for compat arguments translation
Changed since v3:
* Replaced
a time. This patch addresses the gap.
Signed-off-by: Razvan Cojocaru
Signed-off-by: Petre Pircalabu
---
Changed since v2:
* Added support for compat arguments translation
---
tools/libxc/include/xenctrl.h| 3 ++
tools/libxc/xc_altp2m.c | 41 ++
xen/arch
- print the return code of the last failed emulator operation
in hvm_dump_emulation_state.
- print the return code in sh_page_fault (SHADOW_PRINTK) to make the
distiction between X86EMUL_UNHANDLEABLE and X86EMUL_UNIMPLEMENTED.
Signed-off-by: Petre Pircalabu
Reviewed-by: Jan Beulich
---
Changed
. altp2m) instead of just
crashing.
Signed-off-by: Petre Pircalabu
Acked-by: Tamas K Lengyel
Acked-by: Wei Liu
Acked-by: Jan Beulich
---
tools/libxc/include/xenctrl.h | 2 ++
tools/libxc/xc_monitor.c | 14 ++
xen/arch/x86/hvm/emulate.c| 5 +
xen/arch/x86
avior of hvm_emulate_one_insn and vmx_realmode_emulate_one
was modified to generate an Invalid Opcode trap when X86EMUL_UNRECOGNIZED
is returned by the emulator instead of just crash the domain.
Signed-off-by: Petre Pircalabu
---
Changed since v10:
* Added asserts to make sure the return
6EMUL_UNIMPLEMENTED if HAVE_GAS_RDRAND is not defined
* create unrecognized_insn label
* return X86EMUL_UNRECOGNIZED in case of failure to decode Group #13
instructions.
* add a "TODO:" comment to the description of X86EMUL_UNRECOGNIZED
stating that for now it can be used
Modified the behavior of hvm_emulate_one_insn and
vmx_realmode_emulate_one to generate an Invalid Opcode trap when
X86EMUL_UNRECOGNIZED is returned by the emulator instead of just
crashing the domain.
Signed-off-by: Petre Pircalabu
Reviewed-by: Kevin Tian
---
xen/arch/x86/hvm/io.c
ff-by: Petre Pircalabu
---
Changed since v10:
* Added asserts to make sure the return code cannot be
X86EMUL_UNIMPLEMENTED.
* Add new return code (X86EMUL_UNRECOGNIZED) to be used when trying
to emulate an instruction with an invalid opcode.
Changed since v11:
* Fixed double negati
86EMUL_UNRECOGNIZED in some cases (a
detailed list is
provided in the patch description)
* Removed "rc=" from the error message.
* Check for X86EMUL_UNRECOGNIZED instead of X86EMUL_UNIMPLEMENTED when
generating an
Invalid Opcode trap
Petre Pircalabu (4):
x86emul: New
. altp2m) instead of just
crashing.
Signed-off-by: Petre Pircalabu
Acked-by: Tamas K Lengyel
Acked-by: Wei Liu
Acked-by: Jan Beulich
---
tools/libxc/include/xenctrl.h | 2 ++
tools/libxc/xc_monitor.c | 14 ++
xen/arch/x86/hvm/emulate.c| 5 +
xen/arch/x86
- print the return code of the last failed emulator operation
in hvm_dump_emulation_state.
- print the return code in sh_page_fault (SHADOW_PRINTK) to make the
distiction between X86EMUL_UNHANDLEABLE and X86EMUL_UNIMPLEMENTED.
Signed-off-by: Petre Pircalabu
Reviewed-by: Jan Beulich
---
Changed
Signed-off-by: Petre Pircalabu
---
.gitignore | 1 +
1 file changed, 1 insertion(+)
diff --git a/.gitignore b/.gitignore
index ecb198f..cc16649 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,6 +29,7 @@ cscope.in.out
cscope.out
cscope.po.out
.config
+.vimrc
dist
stubdom/*.tar.gz
ff-by: Petre Pircalabu
---
Changed since v10:
* Added asserts to make sure the return code cannot be
X86EMUL_UNIMPLEMENTED.
* Add new return code (X86EMUL_UNRECOGNIZED) to be used when trying
to emulate an instruction with an invalid opcode.
---
xen/arch/x86/hvm/emulate.c
- print the return code of the last failed emulator operation
in hvm_dump_emulation_state.
- print the return code in sh_page_fault (SHADOW_PRINTK) to make the
distiction between X86EMUL_UNHANDLEABLE and X86EMUL_UNIMPLEMENTED.
Signed-off-by: Petre Pircalabu
---
xen/arch/x86/hvm/emulate.c
Modified the behavior of hvm_emulate_one_insn and
vmx_realmode_emulate_one to generate an Invalid Opcode trap when
X86EMUL_UNIMPLEMENTED is returned by the emulator instead of just
crashing the domain.
Signed-off-by: Petre Pircalabu
---
xen/arch/x86/hvm/io.c | 6 +-
xen/arch/x86
. altp2m) instead of just
crashing.
Signed-off-by: Petre Pircalabu
Acked-by: Tamas K Lengyel
Acked-by: Wei Liu
Acked-by: Jan Beulich
---
tools/libxc/include/xenctrl.h | 2 ++
tools/libxc/xc_monitor.c | 14 ++
xen/arch/x86/hvm/emulate.c| 5 +
xen/arch/x86
Added new return code (X86EMUL_UNRECOGNIZED) to be used when trying
to emulate an instruction with an invalid opcode.
* Added emulation return code information to error messages.
* Raise #UD when emulating an unimplemented instruction instead of just crash
the domain
Petre Pircalabu (5):
value returned by
hvm_copy_guest_from_phys / hvm_copy_to_guest_phys.
Similary, none of this functions should not return X86EMUL_UNIMPLEMENTED.
- hvmemul_do_io
- hvm_send_buffered_ioreq
- hvm_send_ioreq
- hvm_broadcast_ioreq
- hvmemul_do_io_buffer
- hvmemul_validate
Signed-off-by: Petre Pirc
the patch comment regarding the usage (and
lack of it)
of the new X86EMUL_UNIMPLEMENTED return code.
* removed 'cannot_emulate' label.
* added local vimrc files to the gitignore list.
Petre Pircalabu (3):
gitignore: add local vimrc files
x86emul: New return code for unimplement
. altp2m) instead of just
crashing.
Signed-off-by: Petre Pircalabu
Acked-by: Tamas K Lengyel
Acked-by: Wei Liu
Acked-by: Jan Beulich
---
tools/libxc/include/xenctrl.h | 2 ++
tools/libxc/xc_monitor.c | 14 ++
xen/arch/x86/hvm/emulate.c| 5 +
xen/arch/x86
Signed-off-by: Petre Pircalabu
---
.gitignore | 1 +
1 file changed, 1 insertion(+)
diff --git a/.gitignore b/.gitignore
index 594ffd9..8af9c02 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,6 +27,7 @@ cscope.in.out
cscope.out
cscope.po.out
.config
+.vimrc
dist
stubdom/*.tar.gz
. altp2m) instead of just
crashing.
Signed-off-by: Petre Pircalabu
Acked-by: Tamas K Lengyel
Acked-by: Wei Liu
Acked-by: Jan Beulich
---
tools/libxc/include/xenctrl.h | 2 ++
tools/libxc/xc_monitor.c | 14 ++
xen/arch/x86/hvm/emulate.c| 4
xen/arch/x86/hvm
This patchset implements a mechanism which allows XEN to send first an event
if the emulator encountered an unsupported instruction.
The monitor application can choose to mitigate the error, for example to
singlestep
the instruction using the real processor and then resume execution of the normal
x86_emulate_ops
callbacks.
Signed-off-by: Petre Pircalabu
Reviewed-by: Paul Durrant
---
xen/arch/x86/hvm/emulate.c | 3 +++
xen/arch/x86/hvm/hvm.c | 1 +
xen/arch/x86/hvm/io.c | 1 +
xen/arch/x86/hvm/vmx/realmode.c| 2 +-
xen/arch/x86/mm
MUL_UNHANDLEABLE checks the in functions
referencing x86_emulate.
* Improved comment describing X86EMUL_UNIMPLEMENTED.
Petre Pircalabu (2):
x86emul: New return code for unimplemented instruction
x86/monitor: Notify monitor if an emulation fails.
tools/libxc/include/xenctrl.h
. altp2m) instead of just
crashing.
Signed-off-by: Petre Pircalabu
---
tools/libxc/include/xenctrl.h | 2 ++
tools/libxc/xc_monitor.c | 14 ++
xen/arch/x86/hvm/emulate.c| 4
xen/arch/x86/hvm/monitor.c| 17 +
xen/arch/x86/monitor.c
x86_emulate_ops
callbacks.
Signed-off-by: Petre Pircalabu
---
xen/arch/x86/hvm/emulate.c | 4
xen/arch/x86/hvm/io.c | 2 ++
xen/arch/x86/hvm/vmx/realmode.c| 2 +-
xen/arch/x86/mm/shadow/multi.c | 2 +-
xen/arch/x86/x86_emulate/x86_emulate.c | 8
. altp2m) instead of just
crashing.
Signed-off-by: Petre Pircalabu
---
tools/libxc/include/xenctrl.h | 2 ++
tools/libxc/xc_monitor.c | 14 ++
xen/arch/x86/hvm/emulate.c| 4
xen/arch/x86/hvm/monitor.c| 17 +
xen/arch/x86/monitor.c
* add the distinction between unimplemented instructions and emulation
failures.
* changed "emul_unhandleable" event name to "emul_unimplemented"
Petre Pircalabu (2):
x86emul: New return code for unimplemented instruction
x86/monitor: Notify monitor if an emulation fails.
Enforce the distinction between an instruction not implemented by the emulator
and the failure to emulate that instruction.
Signed-off-by: Petre Pircalabu
---
xen/arch/x86/hvm/emulate.c | 1 +
xen/arch/x86/x86_emulate/x86_emulate.c | 2 +-
xen/arch/x86/x86_emulate/x86_emulate.h | 2
"uninstall" target so
the files have to be removed manually.
Signed-off-by: Petre Pircalabu
---
Makefile | 22 +++--
docs/Makefile| 15 -
m4/stubdom.m4| 2 ++
stubdom/Makefil
of just
crashing.
Signed-off-by: Petre Pircalabu
---
Changed since v1:
* Removed the emulation kind check when calling hvm_inject_hw_exception
Changed since v2:
* Removed a file added by mistake
Changed since v3:
* Removed extra stray line
* Added the _enabled suffix to the
of just
crashing.
Signed-off-by: Petre Pircalabu
---
Changed since v1:
* Removed the emulation kind check when calling hvm_inject_hw_exception
Changed since v2:
* Removed a file added by mistake
Changed since v3:
* Removed extra stray line
* Added the _enabled suffix to the
of just
crashing.
Signed-off-by: Petre Pircalabu
---
Changed since v1:
* Removed the emulation kind check when calling hvm_inject_hw_exception
Changed since v2:
* Removed a file added by mistake
Changed since v3:
* Removed extra stray line
* Added the _enabled suffix to the
of just
crashing.
Signed-off-by: Petre Pircalabu
---
Changed since v1:
* Removed the emulation kind check when calling hvm_inject_hw_exception
Changed since v2:
* Removed a file added by mistake
Changed since v3:
* Removed extra stray line
* Added the _enabled suffix to the
of just
crashing.
Signed-off-by: Petre Pircalabu
---
Changed since v1:
* Removed the emulation kind check when calling hvm_inject_hw_exception
Changed since v2:
* Removed a file added by mistake
---
tools/libxc/include/xenctrl.h | 2 ++
tools/libxc/xc_monitor.c | 14
of just
crashing.
Signed-off-by: Petre Pircalabu
---
Changed since v1:
* Removed the emulation kind check when calling hvm_inject_hw_exception
---
tools/libxc/include/xenctrl.h | 2 +
tools/libxc/xc_monitor.c | 14 ++
...itor-Notify-monitor-if
of just
crashing.
Signed-off-by: Petre Pircalabu
---
tools/libxc/include/xenctrl.h | 2 ++
tools/libxc/xc_monitor.c | 14 ++
xen/arch/x86/hvm/emulate.c| 5 -
xen/arch/x86/hvm/monitor.c| 19 +++
xen/arch/x86/monitor.c| 12
Add test for write_ctrlreg event handling.
Signed-off-by: Petre Pircalabu
---
tools/tests/xen-access/xen-access.c | 53 -
1 file changed, 52 insertions(+), 1 deletion(-)
diff --git a/tools/tests/xen-access/xen-access.c
b/tools/tests/xen-access/xen-access.c
Add support for filtering out the write_ctrlreg monitor events if they
are generated only by changing certains bits.
A new parameter (bitmask) was added to the xc_monitor_write_ctrlreg
function in order to mask the event generation if the changed bits are
set.
Signed-off-by: Petre Pircalabu
This patchset enables masking the reception of write_ctrlreg events depending
on the value of certain bits in that register.
The most representative example is filtering out events when the CR4.PGE
bit is being flipped (global TLB flushes)
---
Changed since v2
* fix coding style
* use ARRAY_S
Add support for filtering out the write_ctrlreg monitor events if they
are generated only by changing certains bits.
A new parameter (bitmask) was added to the xc_monitor_write_ctrlreg
function in order to mask the event generation if the changed bits are
set.
Signed-off-by: Petre Pircalabu
This patchset enables masking the reception of write_ctrlreg events depending
on the value of certain bits in that register.
The most representative example is filtering out events when the CR4.PGE
bit is being flipped (global TLB flushes)
---
Changed since v2
* fix coding style.
* use ARRAY_
Add test for write_ctrlreg event handling.
Signed-off-by: Petre Pircalabu
---
tools/tests/xen-access/xen-access.c | 53 -
1 file changed, 52 insertions(+), 1 deletion(-)
diff --git a/tools/tests/xen-access/xen-access.c
b/tools/tests/xen-access/xen-access.c
This patchset enables masking the reception of write_ctrlreg events depending
on the value of certain bits in that register.
The most representative example is filtering out events when the CR4.PGE
bit is being flipped (global TLB flushes)
___
Xen-devel
Add support for filtering out the write_ctrlreg monitor events if they
are generated only by changing certains bits.
A new parameter (bitmask) was added to the xc_monitor_write_ctrlreg
function in order to mask the event generation if the changed bits are
set.
Signed-off-by: Petre Pircalabu
Add test for write_ctrlreg event handling.
Signed-off-by: Petre Pircalabu
---
tools/tests/xen-access/xen-access.c | 47 -
1 file changed, 46 insertions(+), 1 deletion(-)
diff --git a/tools/tests/xen-access/xen-access.c
b/tools/tests/xen-access/xen-access.c
On Lu, 2017-05-29 at 09:01 -0600, Jan Beulich wrote:
> >
> > >
> > > >
> > > > On 26.05.17 at 15:41, wrote:
> > --- a/xen/include/public/domctl.h
> > +++ b/xen/include/public/domctl.h
> > @@ -37,7 +37,7 @@
> > #include "hvm/save.h"
> > #include "memory.h"
> >
> > -#define XEN_DOMCTL_INTERFACE_VE
Hello,
This patchset enables masking the reception of write_ctrlreg events depending
on the value of certain bits in that register.
The most representative example is filtering out events when the CR4.PGE
bit is being flipped (global TLB flushes)
Best regards,
Petre
Add support for filtering out the write_ctrlreg monitor events if they
are generated only by changing certains bits.
A new parameter (bitmask) was added to the xc_monitor_write_ctrlreg
function in order to mask the event generation if the changed bits are
set.
Signed-off-by: Petre Pircalabu
Add test for write_ctrlreg event handling.
Signed-off-by: Petre Pircalabu
---
tools/tests/xen-access/xen-access.c | 43 -
1 file changed, 42 insertions(+), 1 deletion(-)
diff --git a/tools/tests/xen-access/xen-access.c
b/tools/tests/xen-access/xen-access.c
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