On Mon, Jun 18, 2012 at 05:25:05PM -0300, Marcelo Tosatti wrote:
On Mon, Jun 18, 2012 at 12:50:10PM +0300, Avi Kivity wrote:
On 06/16/2012 05:11 AM, Marcelo Tosatti wrote:
Can you introduce a separate exit reason, say KVM_EXIT_READ_FAULT, with
information about the fault?
I think
On 06/18/2012 11:25 PM, Marcelo Tosatti wrote:
On Mon, Jun 18, 2012 at 12:50:10PM +0300, Avi Kivity wrote:
On 06/16/2012 05:11 AM, Marcelo Tosatti wrote:
Can you introduce a separate exit reason, say KVM_EXIT_READ_FAULT, with
information about the fault?
I think you mean WRITE_FAULT.
On 06/16/2012 05:11 AM, Marcelo Tosatti wrote:
Can you introduce a separate exit reason, say KVM_EXIT_READ_FAULT, with
information about the fault?
I think you mean WRITE_FAULT. But what's wrong with the normal mmio exit?
Then perform this exit only if userspace allows it by explicit
On Mon, Jun 18, 2012 at 12:50:10PM +0300, Avi Kivity wrote:
On 06/16/2012 05:11 AM, Marcelo Tosatti wrote:
Can you introduce a separate exit reason, say KVM_EXIT_READ_FAULT, with
information about the fault?
I think you mean WRITE_FAULT.
Yes.
But what's wrong with the normal mmio
On 06/18/2012 06:11 PM, Avi Kivity wrote:
static int check_memory_region_flags(struct kvm_userspace_memory_region
*mem)
{
-if (mem-flags ~KVM_MEM_LOG_DIRTY_PAGES)
+if (mem-flags ~(KVM_MEM_LOG_DIRTY_PAGES | KVM_MEM_READONLY))
return -EINVAL;
Only x86 supports
On 06/16/2012 10:11 AM, Marcelo Tosatti wrote:
On Tue, Jun 12, 2012 at 10:49:31AM +0800, Xiao Guangrong wrote:
In current code, if we map a readonly memory space from host to guest
and the page is not currently mapped in the host, we will get a fault-pfn
and async is not allowed, then the vm
On Tue, Jun 12, 2012 at 10:49:31AM +0800, Xiao Guangrong wrote:
In current code, if we map a readonly memory space from host to guest
and the page is not currently mapped in the host, we will get a fault-pfn
and async is not allowed, then the vm will crash
Address Avi's idea, we introduce
In current code, if we map a readonly memory space from host to guest
and the page is not currently mapped in the host, we will get a fault-pfn
and async is not allowed, then the vm will crash
Address Avi's idea, we introduce readonly memory region to map ROM/ROMD
to the guest
Signed-off-by:
