| Message ID | 20210823164157.751807-3-philmd@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | physmem: Have flaview API check bus permission from MemTxAttrs argument | expand |
On Mon, Aug 23, 2021 at 06:41:54PM +0200, Philippe Mathieu-Daudé wrote: > We are going to introduce more MemTxResult bits, so it is > safer to check for !MEMTX_OK rather than MEMTX_ERROR. > > Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com>
On 23.08.21 18:41, Philippe Mathieu-Daudé wrote: > We are going to introduce more MemTxResult bits, so it is > safer to check for !MEMTX_OK rather than MEMTX_ERROR. > > Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> > --- Reviewed-by: David Hildenbrand <david@redhat.com>
On Mon, 23 Aug 2021 at 17:42, Philippe Mathieu-Daudé <philmd@redhat.com> wrote: > > We are going to introduce more MemTxResult bits, so it is > safer to check for !MEMTX_OK rather than MEMTX_ERROR. > > Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> but note that these MEMTX_* aren't from the memory transaction API functions; they're just being used by gicd_readl() and friends as a way to indicate a success/failure so that the actual MemoryRegionOps read/write fns like gicv3_dist_read() can log a guest error. Arguably this is a bit of a misuse of the MEMTX_* constants and perhaps we should have gicd_readl etc return a bool instead. thanks -- PMM
On Mon, Aug 23, 2021 at 06:41:54PM +0200, Philippe Mathieu-Daudé wrote: > We are going to introduce more MemTxResult bits, so it is > safer to check for !MEMTX_OK rather than MEMTX_ERROR. > > Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> > --- > hw/intc/arm_gicv3_dist.c | 4 ++-- > hw/intc/arm_gicv3_redist.c | 4 ++-- > 2 files changed, 4 insertions(+), 4 deletions(-) Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/hw/intc/arm_gicv3_dist.c b/hw/intc/arm_gicv3_dist.c index b65f56f9035..e62a9cdfa8d 100644 --- a/hw/intc/arm_gicv3_dist.c +++ b/hw/intc/arm_gicv3_dist.c @@ -819,7 +819,7 @@ MemTxResult gicv3_dist_read(void *opaque, hwaddr offset, uint64_t *data, break; } - if (r == MEMTX_ERROR) { + if (r != MEMTX_OK) { qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid guest read at offset " TARGET_FMT_plx "size %u\n", __func__, offset, size); @@ -861,7 +861,7 @@ MemTxResult gicv3_dist_write(void *opaque, hwaddr offset, uint64_t data, break; } - if (r == MEMTX_ERROR) { + if (r != MEMTX_OK) { qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid guest write at offset " TARGET_FMT_plx "size %u\n", __func__, offset, size); diff --git a/hw/intc/arm_gicv3_redist.c b/hw/intc/arm_gicv3_redist.c index 53da703ed84..547281a8961 100644 --- a/hw/intc/arm_gicv3_redist.c +++ b/hw/intc/arm_gicv3_redist.c @@ -450,7 +450,7 @@ MemTxResult gicv3_redist_read(void *opaque, hwaddr offset, uint64_t *data, break; } - if (r == MEMTX_ERROR) { + if (r != MEMTX_OK) { qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid guest read at offset " TARGET_FMT_plx " size %u\n", __func__, offset, size); @@ -507,7 +507,7 @@ MemTxResult gicv3_redist_write(void *opaque, hwaddr offset, uint64_t data, break; } - if (r == MEMTX_ERROR) { + if (r != MEMTX_OK) { qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid guest write at offset " TARGET_FMT_plx " size %u\n", __func__, offset, size);
We are going to introduce more MemTxResult bits, so it is safer to check for !MEMTX_OK rather than MEMTX_ERROR. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> --- hw/intc/arm_gicv3_dist.c | 4 ++-- hw/intc/arm_gicv3_redist.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-)