| Message ID | 20230421160827.2227-3-Jonathan.Cameron@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | hw/mem: CXL Type-3 Volatile Memory Support | expand |
On Fri, Apr 21, 2023 at 05:08:26PM +0100, Jonathan Cameron wrote: > Accessors prefered over direct use of int128_get64() as they > clamp out of range values. None are expected here but > cleaner to always use the accessor than mix and match. > > Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> > > --- > v5: New patch to tidy up existing instance before adding more of > them. > - Use memory_region_size() to access the size of memory regions. > We may eventually need to allow for larger addresses but it > is unlikely to be a problem any time soon. > --- > hw/mem/cxl_type3.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c > index 1bd5963a3f..2db756851c 100644 > --- a/hw/mem/cxl_type3.c > +++ b/hw/mem/cxl_type3.c > @@ -52,7 +52,7 @@ static int ct3_build_cdat_entries_for_mr(CDATSubHeader **cdat_table, > .DSMADhandle = dsmad_handle, > .flags = CDAT_DSMAS_FLAG_NV, > .DPA_base = 0, > - .DPA_length = int128_get64(mr->size), > + .DPA_length = memory_region_size(mr), > }; > > /* For now, no memory side cache, plausiblish numbers */ > @@ -133,7 +133,7 @@ static int ct3_build_cdat_entries_for_mr(CDATSubHeader **cdat_table, > /* Reserved - the non volatile from DSMAS matters */ > .EFI_memory_type_attr = 2, > .DPA_offset = 0, > - .DPA_length = int128_get64(mr->size), > + .DPA_length = memory_region_size(mr), > }; > > /* Header always at start of structure */ > @@ -698,7 +698,7 @@ MemTxResult cxl_type3_read(PCIDevice *d, hwaddr host_addr, uint64_t *data, > return MEMTX_ERROR; > } > > - if (dpa_offset > int128_get64(mr->size)) { > + if (dpa_offset > memory_region_size(mr)) { > return MEMTX_ERROR; > } > > @@ -721,7 +721,7 @@ MemTxResult cxl_type3_write(PCIDevice *d, hwaddr host_addr, uint64_t data, > return MEMTX_OK; > } > > - if (dpa_offset > int128_get64(mr->size)) { > + if (dpa_offset > memory_region_size(mr)) { > return MEMTX_OK; > } > return address_space_write(&ct3d->hostmem_as, dpa_offset, attrs, > -- > 2.37.2 > lgtm Reviewed-by: Gregory Price <gregory.price@memverge.com>
diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c index 1bd5963a3f..2db756851c 100644 --- a/hw/mem/cxl_type3.c +++ b/hw/mem/cxl_type3.c @@ -52,7 +52,7 @@ static int ct3_build_cdat_entries_for_mr(CDATSubHeader **cdat_table, .DSMADhandle = dsmad_handle, .flags = CDAT_DSMAS_FLAG_NV, .DPA_base = 0, - .DPA_length = int128_get64(mr->size), + .DPA_length = memory_region_size(mr), }; /* For now, no memory side cache, plausiblish numbers */ @@ -133,7 +133,7 @@ static int ct3_build_cdat_entries_for_mr(CDATSubHeader **cdat_table, /* Reserved - the non volatile from DSMAS matters */ .EFI_memory_type_attr = 2, .DPA_offset = 0, - .DPA_length = int128_get64(mr->size), + .DPA_length = memory_region_size(mr), }; /* Header always at start of structure */ @@ -698,7 +698,7 @@ MemTxResult cxl_type3_read(PCIDevice *d, hwaddr host_addr, uint64_t *data, return MEMTX_ERROR; } - if (dpa_offset > int128_get64(mr->size)) { + if (dpa_offset > memory_region_size(mr)) { return MEMTX_ERROR; } @@ -721,7 +721,7 @@ MemTxResult cxl_type3_write(PCIDevice *d, hwaddr host_addr, uint64_t data, return MEMTX_OK; } - if (dpa_offset > int128_get64(mr->size)) { + if (dpa_offset > memory_region_size(mr)) { return MEMTX_OK; } return address_space_write(&ct3d->hostmem_as, dpa_offset, attrs,
Accessors prefered over direct use of int128_get64() as they clamp out of range values. None are expected here but cleaner to always use the accessor than mix and match. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> --- v5: New patch to tidy up existing instance before adding more of them. - Use memory_region_size() to access the size of memory regions. We may eventually need to allow for larger addresses but it is unlikely to be a problem any time soon. --- hw/mem/cxl_type3.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)