| Message ID | 20240701110241.2005222-8-smostafa@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | SMMUv3 nested translation support | expand |
On Mon, Jul 01, 2024 at 11:02:29AM +0000, Mostafa Saleh wrote: > Soon, smmuv3_do_translate() will be used to translate the CD and the > TTBx, instead of re-writting the same logic to convert the returned > cached entry to an address, add a new macro CACHED_ENTRY_TO_ADDR. > > Signed-off-by: Mostafa Saleh <smostafa@google.com> > --- > hw/arm/smmuv3.c | 3 +-- > include/hw/arm/smmu-common.h | 3 +++ > 2 files changed, 4 insertions(+), 2 deletions(-) > > diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c > index cc61708160..229b3c388c 100644 > --- a/hw/arm/smmuv3.c > +++ b/hw/arm/smmuv3.c > @@ -950,8 +950,7 @@ epilogue: > switch (status) { > case SMMU_TRANS_SUCCESS: > entry.perm = cached_entry->entry.perm; > - entry.translated_addr = cached_entry->entry.translated_addr + > - (addr & cached_entry->entry.addr_mask); > + entry.translated_addr = CACHED_ENTRY_TO_ADDR(cached_entry, addr); > entry.addr_mask = cached_entry->entry.addr_mask; > trace_smmuv3_translate_success(mr->parent_obj.name, sid, addr, > entry.translated_addr, entry.perm, > diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h > index 96eb017e50..09d3b9e734 100644 > --- a/include/hw/arm/smmu-common.h > +++ b/include/hw/arm/smmu-common.h > @@ -37,6 +37,9 @@ > #define VMSA_IDXMSK(isz, strd, lvl) ((1ULL << \ > VMSA_BIT_LVL(isz, strd, lvl)) - 1) > > +#define CACHED_ENTRY_TO_ADDR(ent, addr) (ent)->entry.translated_addr + \ > + ((addr) & (ent)->entry.addr_mask); nit: maybe wrap this in parenthesis to avoid future usage mistakes and drop the semicolon Thanks, Jean > + > /* > * Page table walk error types > */ > -- > 2.45.2.803.g4e1b14247a-goog >
Hi Mostafa, On 7/4/24 20:04, Jean-Philippe Brucker wrote: > On Mon, Jul 01, 2024 at 11:02:29AM +0000, Mostafa Saleh wrote: >> Soon, smmuv3_do_translate() will be used to translate the CD and the >> TTBx, instead of re-writting the same logic to convert the returned >> cached entry to an address, add a new macro CACHED_ENTRY_TO_ADDR. >> >> Signed-off-by: Mostafa Saleh <smostafa@google.com> >> --- >> hw/arm/smmuv3.c | 3 +-- >> include/hw/arm/smmu-common.h | 3 +++ >> 2 files changed, 4 insertions(+), 2 deletions(-) >> >> diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c >> index cc61708160..229b3c388c 100644 >> --- a/hw/arm/smmuv3.c >> +++ b/hw/arm/smmuv3.c >> @@ -950,8 +950,7 @@ epilogue: >> switch (status) { >> case SMMU_TRANS_SUCCESS: >> entry.perm = cached_entry->entry.perm; >> - entry.translated_addr = cached_entry->entry.translated_addr + >> - (addr & cached_entry->entry.addr_mask); >> + entry.translated_addr = CACHED_ENTRY_TO_ADDR(cached_entry, addr); >> entry.addr_mask = cached_entry->entry.addr_mask; >> trace_smmuv3_translate_success(mr->parent_obj.name, sid, addr, >> entry.translated_addr, entry.perm, >> diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h >> index 96eb017e50..09d3b9e734 100644 >> --- a/include/hw/arm/smmu-common.h >> +++ b/include/hw/arm/smmu-common.h >> @@ -37,6 +37,9 @@ >> #define VMSA_IDXMSK(isz, strd, lvl) ((1ULL << \ >> VMSA_BIT_LVL(isz, strd, lvl)) - 1) >> >> +#define CACHED_ENTRY_TO_ADDR(ent, addr) (ent)->entry.translated_addr + \ >> + ((addr) & (ent)->entry.addr_mask); > nit: maybe wrap this in parenthesis to avoid future usage mistakes and > drop the semicolon With Jean's comments taken into account, Reviewed-by: Eric Auger <eric.auger@redhat.com> Eric > > Thanks, > Jean > >> + >> /* >> * Page table walk error types >> */ >> -- >> 2.45.2.803.g4e1b14247a-goog >>
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c index cc61708160..229b3c388c 100644 --- a/hw/arm/smmuv3.c +++ b/hw/arm/smmuv3.c @@ -950,8 +950,7 @@ epilogue: switch (status) { case SMMU_TRANS_SUCCESS: entry.perm = cached_entry->entry.perm; - entry.translated_addr = cached_entry->entry.translated_addr + - (addr & cached_entry->entry.addr_mask); + entry.translated_addr = CACHED_ENTRY_TO_ADDR(cached_entry, addr); entry.addr_mask = cached_entry->entry.addr_mask; trace_smmuv3_translate_success(mr->parent_obj.name, sid, addr, entry.translated_addr, entry.perm, diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h index 96eb017e50..09d3b9e734 100644 --- a/include/hw/arm/smmu-common.h +++ b/include/hw/arm/smmu-common.h @@ -37,6 +37,9 @@ #define VMSA_IDXMSK(isz, strd, lvl) ((1ULL << \ VMSA_BIT_LVL(isz, strd, lvl)) - 1) +#define CACHED_ENTRY_TO_ADDR(ent, addr) (ent)->entry.translated_addr + \ + ((addr) & (ent)->entry.addr_mask); + /* * Page table walk error types */
Soon, smmuv3_do_translate() will be used to translate the CD and the TTBx, instead of re-writting the same logic to convert the returned cached entry to an address, add a new macro CACHED_ENTRY_TO_ADDR. Signed-off-by: Mostafa Saleh <smostafa@google.com> --- hw/arm/smmuv3.c | 3 +-- include/hw/arm/smmu-common.h | 3 +++ 2 files changed, 4 insertions(+), 2 deletions(-)