Re: [PATCH] iommu/vt-d: Don't store SIRTP request

2014-08-19 Thread Joerg Roedel
On Mon, Aug 11, 2014 at 01:13:25PM +0200, Jan Kiszka wrote: > Don't store the SIRTP request bit in the register state. It will > otherwise become sticky and could request an Interrupt Remap Table > Pointer update on each command register write. > > Found while starting to emulate IR in QEMU, not b

[PATCH] iommu/vt-d: Don't store SIRTP request

2014-08-11 Thread Jan Kiszka
Don't store the SIRTP request bit in the register state. It will otherwise become sticky and could request an Interrupt Remap Table Pointer update on each command register write. Found while starting to emulate IR in QEMU, not by observing problems on real hardware. Signed-off-by: Jan Kiszka ---