On Mon, Feb 13, 2023 at 10:25 AM Jeremi Piotrowski <jpiotrowski@xxxxxxxxxxxxxxxxxxx> wrote: > > The AMD Secure Processor ACPI Table provides the memory location of the > register window and register offsets necessary to communicate with AMD's > PSP (Platform Security Processor). This table is exposed on Hyper-V VMs > configured with support for AMD's SNP isolation technology. > > Signed-off-by: Jeremi Piotrowski <jpiotrowski@xxxxxxxxxxxxxxxxxxx> Please add a Link tag pointing to the corresponding upstream ACPICA pull request (or upstream ACPICA commit if already pulled) to this patch and analogously for patch [2/8]. Thanks! > --- > include/acpi/actbl1.h | 46 +++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 46 insertions(+) > > diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h > index 15c78678c5d3..00d40373df37 100644 > --- a/include/acpi/actbl1.h > +++ b/include/acpi/actbl1.h > @@ -26,6 +26,7 @@ > */ > #define ACPI_SIG_AEST "AEST" /* Arm Error Source Table */ > #define ACPI_SIG_ASF "ASF!" /* Alert Standard Format table */ > +#define ACPI_SIG_ASPT "ASPT" /* AMD Secure Processor Table */ > #define ACPI_SIG_BERT "BERT" /* Boot Error Record Table */ > #define ACPI_SIG_BGRT "BGRT" /* Boot Graphics Resource Table */ > #define ACPI_SIG_BOOT "BOOT" /* Simple Boot Flag Table */ > @@ -106,6 +107,51 @@ struct acpi_whea_header { > u64 mask; /* Bitmask required for this register instruction */ > }; > > +/* https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/acpitabl/ns-acpitabl-aspt_table */ > +#define ASPT_REVISION_ID 0x01 > +struct acpi_table_aspt { > + struct acpi_table_header header; > + u32 num_entries; > +}; > + > +struct acpi_aspt_header { > + u16 type; > + u16 length; > +}; > + > +enum acpi_aspt_type { > + ACPI_ASPT_TYPE_GLOBAL_REGS = 0, > + ACPI_ASPT_TYPE_SEV_MBOX_REGS = 1, > + ACPI_ASPT_TYPE_ACPI_MBOX_REGS = 2, > +}; > + > +/* 0: ASPT Global Registers */ > +struct acpi_aspt_global_regs { > + struct acpi_aspt_header header; > + u32 reserved; > + u64 feature_reg_addr; > + u64 irq_en_reg_addr; > + u64 irq_st_reg_addr; > +}; > + > +/* 1: ASPT SEV Mailbox Registers */ > +struct acpi_aspt_sev_mbox_regs { > + struct acpi_aspt_header header; > + u8 mbox_irq_id; > + u8 reserved[3]; > + u64 cmd_resp_reg_addr; > + u64 cmd_buf_lo_reg_addr; > + u64 cmd_buf_hi_reg_addr; > +}; > + > +/* 2: ASPT ACPI Mailbox Registers */ > +struct acpi_aspt_acpi_mbox_regs { > + struct acpi_aspt_header header; > + u32 reserved1; > + u64 cmd_resp_reg_addr; > + u64 reserved2[2]; > +}; > + > /******************************************************************************* > * > * ASF - Alert Standard Format table (Signature "ASF!") > -- > 2.25.1 >