Am 25.01.2012 17:00, schrieb Joerg Roedel:
On Tue, Jan 24, 2012 at 06:23:50PM +0200, Gleb Natapov wrote:
On Tue, Jan 24, 2012 at 03:24:50PM +0100, Kevin Wolf wrote:
However, task_switch_interception() itself does some more based on the
value of reason, for example it decides whether or not
On Fri, Jan 27, 2012 at 01:58:38PM +0100, Kevin Wolf wrote:
Am 25.01.2012 17:00, schrieb Joerg Roedel:
I just retried. I use kvm-kmod and kvm.git with HEAD at ff92e9b5 plus
the tree patches of this series plus a printk to output exit_int_info in
task_switch_intercept(). I ran taskswitch2 from
Am 27.01.2012 14:34, schrieb Joerg Roedel:
On Fri, Jan 27, 2012 at 01:58:38PM +0100, Kevin Wolf wrote:
Am 25.01.2012 17:00, schrieb Joerg Roedel:
I just retried. I use kvm-kmod and kvm.git with HEAD at ff92e9b5 plus
the tree patches of this series plus a printk to output exit_int_info in
On Fri, Jan 27, 2012 at 02:55:12PM +0100, Kevin Wolf wrote:
Am 27.01.2012 14:34, schrieb Joerg Roedel:
On Fri, Jan 27, 2012 at 01:58:38PM +0100, Kevin Wolf wrote:
Am 25.01.2012 17:00, schrieb Joerg Roedel:
I just retried. I use kvm-kmod and kvm.git with HEAD at ff92e9b5 plus
the tree
Am 27.01.2012 15:17, schrieb Joerg Roedel:
On Fri, Jan 27, 2012 at 02:55:12PM +0100, Kevin Wolf wrote:
Am 27.01.2012 14:34, schrieb Joerg Roedel:
On Fri, Jan 27, 2012 at 01:58:38PM +0100, Kevin Wolf wrote:
Am 25.01.2012 17:00, schrieb Joerg Roedel:
I just retried. I use kvm-kmod and kvm.git
On Fri, Jan 27, 2012 at 04:02:30PM +0100, Kevin Wolf wrote:
Am 27.01.2012 15:17, schrieb Joerg Roedel:
On Fri, Jan 27, 2012 at 02:55:12PM +0100, Kevin Wolf wrote:
Am 27.01.2012 14:34, schrieb Joerg Roedel:
On Fri, Jan 27, 2012 at 01:58:38PM +0100, Kevin Wolf wrote:
Am 25.01.2012 17:00,
On Tue, Jan 24, 2012 at 06:23:50PM +0200, Gleb Natapov wrote:
On Tue, Jan 24, 2012 at 03:24:50PM +0100, Kevin Wolf wrote:
However, task_switch_interception() itself does some more based on the
value of reason, for example it decides whether or not to call
skip_emulated_instruction().
On Wed, Jan 25, 2012 at 05:00:58PM +0100, Joerg Roedel wrote:
On Tue, Jan 24, 2012 at 06:23:50PM +0200, Gleb Natapov wrote:
On Tue, Jan 24, 2012 at 03:24:50PM +0100, Kevin Wolf wrote:
However, task_switch_interception() itself does some more based on the
value of reason, for example it
On Mon, Jan 23, 2012 at 05:10:46PM +0100, Kevin Wolf wrote:
Currently, all task switches check privileges against the DPL of the
TSS. This is only correct for jmp/call to a TSS. If a task gate is used,
the DPL of this take gate is used for the check instead. Exceptions,
external interrupts and
Am 24.01.2012 10:52, schrieb Gleb Natapov:
On Mon, Jan 23, 2012 at 05:10:46PM +0100, Kevin Wolf wrote:
Currently, all task switches check privileges against the DPL of the
TSS. This is only correct for jmp/call to a TSS. If a task gate is used,
the DPL of this take gate is used for the check
On Tue, Jan 24, 2012 at 11:09:09AM +0100, Kevin Wolf wrote:
+ } else if (reason != TASK_SWITCH_IRET) {
+ dpl = next_tss_desc.dpl;
}
No need parentheses around one statement.
Documentation/CodingStyle says:
This does not apply if only one branch of a conditional statement
Am 24.01.2012 11:17, schrieb Gleb Natapov:
On Tue, Jan 24, 2012 at 11:09:09AM +0100, Kevin Wolf wrote:
+ } else if (reason != TASK_SWITCH_IRET) {
+ dpl = next_tss_desc.dpl;
}
No need parentheses around one statement.
Documentation/CodingStyle says:
This does not apply if only
On Tue, Jan 24, 2012 at 11:38:24AM +0100, Kevin Wolf wrote:
Am 24.01.2012 11:17, schrieb Gleb Natapov:
On Tue, Jan 24, 2012 at 11:09:09AM +0100, Kevin Wolf wrote:
+} else if (reason != TASK_SWITCH_IRET) {
+dpl = next_tss_desc.dpl;
}
No need parentheses
Am 24.01.2012 11:52, schrieb Gleb Natapov:
On Tue, Jan 24, 2012 at 11:38:24AM +0100, Kevin Wolf wrote:
Am 24.01.2012 11:17, schrieb Gleb Natapov:
On Tue, Jan 24, 2012 at 11:09:09AM +0100, Kevin Wolf wrote:
+} else if (reason != TASK_SWITCH_IRET) {
+dpl =
On Tue, Jan 24, 2012 at 12:23:07PM +0100, Kevin Wolf wrote:
Am 24.01.2012 11:52, schrieb Gleb Natapov:
On Tue, Jan 24, 2012 at 11:38:24AM +0100, Kevin Wolf wrote:
Am 24.01.2012 11:17, schrieb Gleb Natapov:
On Tue, Jan 24, 2012 at 11:09:09AM +0100, Kevin Wolf wrote:
+ } else if
On Mon, Jan 23, 2012 at 05:10:46PM +0100, Kevin Wolf wrote:
This patch fixes the problem for VMX. For SVM, the logic used to
determine the source of the task switch is buggy, so we can't pass
useful information to the emulator there and just disable the check in
all cases.
Actually, SVM isn't
Am 24.01.2012 15:03, schrieb Joerg Roedel:
On Mon, Jan 23, 2012 at 05:10:46PM +0100, Kevin Wolf wrote:
This patch fixes the problem for VMX. For SVM, the logic used to
determine the source of the task switch is buggy, so we can't pass
useful information to the emulator there and just disable
On Tue, Jan 24, 2012 at 03:15:13PM +0100, Kevin Wolf wrote:
Am 24.01.2012 15:03, schrieb Joerg Roedel:
On Mon, Jan 23, 2012 at 05:10:46PM +0100, Kevin Wolf wrote:
This patch fixes the problem for VMX. For SVM, the logic used to
determine the source of the task switch is buggy, so we can't
Am 24.01.2012 15:16, schrieb Gleb Natapov:
On Tue, Jan 24, 2012 at 03:15:13PM +0100, Kevin Wolf wrote:
Am 24.01.2012 15:03, schrieb Joerg Roedel:
On Mon, Jan 23, 2012 at 05:10:46PM +0100, Kevin Wolf wrote:
This patch fixes the problem for VMX. For SVM, the logic used to
determine the source
On Tue, Jan 24, 2012 at 03:24:50PM +0100, Kevin Wolf wrote:
Am 24.01.2012 15:16, schrieb Gleb Natapov:
On Tue, Jan 24, 2012 at 03:15:13PM +0100, Kevin Wolf wrote:
Am 24.01.2012 15:03, schrieb Joerg Roedel:
On Mon, Jan 23, 2012 at 05:10:46PM +0100, Kevin Wolf wrote:
This patch fixes the
Currently, all task switches check privileges against the DPL of the
TSS. This is only correct for jmp/call to a TSS. If a task gate is used,
the DPL of this take gate is used for the check instead. Exceptions,
external interrupts and iret shouldn't perform any check.
This patch fixes the problem
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