| Message ID | 20240307160319.675044-2-dbarboza@ventanamicro.com |
|---|---|
| State | New |
| Headers | show |
| Series | riscv: QEMU RISC-V IOMMU Support | expand |
Reviewed-by: Frank Chang <frank.chang@sifive.com> Daniel Henrique Barboza <dbarboza@ventanamicro.com> 於 2024年3月8日 週五 上午12:04寫道： > > From: Tomasz Jeznach <tjeznach@rivosinc.com> > > Extend memory transaction attributes with process identifier to allow > per-request address translation logic to use requester_id / process_id > to identify memory mapping (e.g. enabling IOMMU w/ PASID translations). > > Signed-off-by: Tomasz Jeznach <tjeznach@rivosinc.com> > --- > include/exec/memattrs.h | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/include/exec/memattrs.h b/include/exec/memattrs.h > index 14cdd8d582..46d0725416 100644 > --- a/include/exec/memattrs.h > +++ b/include/exec/memattrs.h > @@ -52,6 +52,11 @@ typedef struct MemTxAttrs { > unsigned int memory:1; > /* Requester ID (for MSI for example) */ > unsigned int requester_id:16; > + > + /* > + * PCI PASID support: Limited to 8 bits process identifier. > + */ > + unsigned int pasid:8; > } MemTxAttrs; > > /* Bus masters which don't specify any attributes will get this, > -- > 2.43.2 > >
diff --git a/include/exec/memattrs.h b/include/exec/memattrs.h index 14cdd8d582..46d0725416 100644 --- a/include/exec/memattrs.h +++ b/include/exec/memattrs.h @@ -52,6 +52,11 @@ typedef struct MemTxAttrs { unsigned int memory:1; /* Requester ID (for MSI for example) */ unsigned int requester_id:16; + + /* + * PCI PASID support: Limited to 8 bits process identifier. + */ + unsigned int pasid:8; } MemTxAttrs; /* Bus masters which don't specify any attributes will get this,