08.05.2024 20:44, Philippe Mathieu-Daudé wrote:
From: Mattias Nissler <mniss...@rivosinc.com>
PCI config space is little-endian, so on a big-endian host we need to
perform byte swaps for values as they are passed to and received from
the generic PCI config space access machinery.
Is this a material for stable?
Thanks,
/mjt
hw/remote/vfio-user-obj.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/remote/vfio-user-obj.c b/hw/remote/vfio-user-obj.c
index d9b879e056..8dbafafb9e 100644
--- a/hw/remote/vfio-user-obj.c
+++ b/hw/remote/vfio-user-obj.c
@@ -281,7 +281,7 @@ static ssize_t vfu_object_cfg_access(vfu_ctx_t *vfu_ctx,
char * const buf,
while (bytes > 0) {
len = (bytes > pci_access_width) ? pci_access_width : bytes;
if (is_write) {
- memcpy(&val, ptr, len);
+ val = ldn_le_p(ptr, len);
pci_host_config_write_common(o->pci_dev, offset,
pci_config_size(o->pci_dev),
val, len);
@@ -289,7 +289,7 @@ static ssize_t vfu_object_cfg_access(vfu_ctx_t *vfu_ctx,
char * const buf,
} else {
val = pci_host_config_read_common(o->pci_dev, offset,
pci_config_size(o->pci_dev),
len);
- memcpy(ptr, &val, len);
+ stn_le_p(ptr, len, val);
trace_vfu_cfg_read(offset, val);
}
offset += len;
--
GPG Key transition (from rsa2048 to rsa4096) since 2024-04-24.
New key: rsa4096/61AD3D98ECDF2C8E 9D8B E14E 3F2A 9DD7 9199 28F1 61AD 3D98
ECDF 2C8E
Old key: rsa2048/457CE0A0804465C5 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0
8044 65C5
Transition statement: http://www.corpit.ru/mjt/gpg-transition-2024.txt
