mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-09-06 09:55:55 +00:00
nvdimm acpi: use common macros instead of magic names
There are some names repeatedly used in acpi code, define them as macros to refine the code Suggested-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
parent
fa1a448dda
commit
3ae66c45f9
|
@ -773,8 +773,20 @@ void nvdimm_init_acpi_state(AcpiNVDIMMState *state, MemoryRegion *io,
|
|||
state->dsm_mem->len);
|
||||
}
|
||||
|
||||
#define NVDIMM_COMMON_DSM "NCAL"
|
||||
#define NVDIMM_ACPI_MEM_ADDR "MEMA"
|
||||
#define NVDIMM_COMMON_DSM "NCAL"
|
||||
#define NVDIMM_ACPI_MEM_ADDR "MEMA"
|
||||
|
||||
#define NVDIMM_DSM_MEMORY "NRAM"
|
||||
#define NVDIMM_DSM_IOPORT "NPIO"
|
||||
|
||||
#define NVDIMM_DSM_NOTIFY "NTFI"
|
||||
#define NVDIMM_DSM_HANDLE "HDLE"
|
||||
#define NVDIMM_DSM_REVISION "REVS"
|
||||
#define NVDIMM_DSM_FUNCTION "FUNC"
|
||||
#define NVDIMM_DSM_ARG3 "FARG"
|
||||
|
||||
#define NVDIMM_DSM_OUT_BUF_SIZE "RLEN"
|
||||
#define NVDIMM_DSM_OUT_BUF "ODAT"
|
||||
|
||||
static void nvdimm_build_common_dsm(Aml *dev)
|
||||
{
|
||||
|
@ -793,60 +805,63 @@ static void nvdimm_build_common_dsm(Aml *dev)
|
|||
aml_append(method, aml_store(aml_name(NVDIMM_ACPI_MEM_ADDR), dsm_mem));
|
||||
|
||||
/* map DSM memory and IO into ACPI namespace. */
|
||||
aml_append(method, aml_operation_region("NPIO", AML_SYSTEM_IO,
|
||||
aml_append(method, aml_operation_region(NVDIMM_DSM_IOPORT, AML_SYSTEM_IO,
|
||||
aml_int(NVDIMM_ACPI_IO_BASE), NVDIMM_ACPI_IO_LEN));
|
||||
aml_append(method, aml_operation_region("NRAM", AML_SYSTEM_MEMORY,
|
||||
dsm_mem, sizeof(NvdimmDsmIn)));
|
||||
aml_append(method, aml_operation_region(NVDIMM_DSM_MEMORY,
|
||||
AML_SYSTEM_MEMORY, dsm_mem, sizeof(NvdimmDsmIn)));
|
||||
|
||||
/*
|
||||
* DSM notifier:
|
||||
* NTFI: write the address of DSM memory and notify QEMU to emulate
|
||||
* the access.
|
||||
* NVDIMM_DSM_NOTIFY: write the address of DSM memory and notify QEMU to
|
||||
* emulate the access.
|
||||
*
|
||||
* It is the IO port so that accessing them will cause VM-exit, the
|
||||
* control will be transferred to QEMU.
|
||||
*/
|
||||
field = aml_field("NPIO", AML_DWORD_ACC, AML_NOLOCK, AML_PRESERVE);
|
||||
aml_append(field, aml_named_field("NTFI",
|
||||
field = aml_field(NVDIMM_DSM_IOPORT, AML_DWORD_ACC, AML_NOLOCK,
|
||||
AML_PRESERVE);
|
||||
aml_append(field, aml_named_field(NVDIMM_DSM_NOTIFY,
|
||||
sizeof(uint32_t) * BITS_PER_BYTE));
|
||||
aml_append(method, field);
|
||||
|
||||
/*
|
||||
* DSM input:
|
||||
* HDLE: store device's handle, it's zero if the _DSM call happens
|
||||
* on NVDIMM Root Device.
|
||||
* REVS: store the Arg1 of _DSM call.
|
||||
* FUNC: store the Arg2 of _DSM call.
|
||||
* FARG: store the Arg3 of _DSM call which is a Package containing
|
||||
* function-specific arguments.
|
||||
* NVDIMM_DSM_HANDLE: store device's handle, it's zero if the _DSM call
|
||||
* happens on NVDIMM Root Device.
|
||||
* NVDIMM_DSM_REVISION: store the Arg1 of _DSM call.
|
||||
* NVDIMM_DSM_FUNCTION: store the Arg2 of _DSM call.
|
||||
* NVDIMM_DSM_ARG3: store the Arg3 of _DSM call which is a Package
|
||||
* containing function-specific arguments.
|
||||
*
|
||||
* They are RAM mapping on host so that these accesses never cause
|
||||
* VM-EXIT.
|
||||
*/
|
||||
field = aml_field("NRAM", AML_DWORD_ACC, AML_NOLOCK, AML_PRESERVE);
|
||||
aml_append(field, aml_named_field("HDLE",
|
||||
field = aml_field(NVDIMM_DSM_MEMORY, AML_DWORD_ACC, AML_NOLOCK,
|
||||
AML_PRESERVE);
|
||||
aml_append(field, aml_named_field(NVDIMM_DSM_HANDLE,
|
||||
sizeof(typeof_field(NvdimmDsmIn, handle)) * BITS_PER_BYTE));
|
||||
aml_append(field, aml_named_field("REVS",
|
||||
aml_append(field, aml_named_field(NVDIMM_DSM_REVISION,
|
||||
sizeof(typeof_field(NvdimmDsmIn, revision)) * BITS_PER_BYTE));
|
||||
aml_append(field, aml_named_field("FUNC",
|
||||
aml_append(field, aml_named_field(NVDIMM_DSM_FUNCTION,
|
||||
sizeof(typeof_field(NvdimmDsmIn, function)) * BITS_PER_BYTE));
|
||||
aml_append(field, aml_named_field("FARG",
|
||||
aml_append(field, aml_named_field(NVDIMM_DSM_ARG3,
|
||||
(sizeof(NvdimmDsmIn) - offsetof(NvdimmDsmIn, arg3)) * BITS_PER_BYTE));
|
||||
aml_append(method, field);
|
||||
|
||||
/*
|
||||
* DSM output:
|
||||
* RLEN: the size of the buffer filled by QEMU.
|
||||
* ODAT: the buffer QEMU uses to store the result.
|
||||
* NVDIMM_DSM_OUT_BUF_SIZE: the size of the buffer filled by QEMU.
|
||||
* NVDIMM_DSM_OUT_BUF: the buffer QEMU uses to store the result.
|
||||
*
|
||||
* Since the page is reused by both input and out, the input data
|
||||
* will be lost after storing new result into ODAT so we should fetch
|
||||
* all the input data before writing the result.
|
||||
*/
|
||||
field = aml_field("NRAM", AML_DWORD_ACC, AML_NOLOCK, AML_PRESERVE);
|
||||
aml_append(field, aml_named_field("RLEN",
|
||||
field = aml_field(NVDIMM_DSM_MEMORY, AML_DWORD_ACC, AML_NOLOCK,
|
||||
AML_PRESERVE);
|
||||
aml_append(field, aml_named_field(NVDIMM_DSM_OUT_BUF_SIZE,
|
||||
sizeof(typeof_field(NvdimmDsmOut, len)) * BITS_PER_BYTE));
|
||||
aml_append(field, aml_named_field("ODAT",
|
||||
aml_append(field, aml_named_field(NVDIMM_DSM_OUT_BUF,
|
||||
(sizeof(NvdimmDsmOut) - offsetof(NvdimmDsmOut, data)) * BITS_PER_BYTE));
|
||||
aml_append(method, field);
|
||||
|
||||
|
@ -892,9 +907,9 @@ static void nvdimm_build_common_dsm(Aml *dev)
|
|||
* it reserves 0 for root device and is the handle for NVDIMM devices.
|
||||
* See the comments in nvdimm_slot_to_handle().
|
||||
*/
|
||||
aml_append(method, aml_store(handle, aml_name("HDLE")));
|
||||
aml_append(method, aml_store(aml_arg(1), aml_name("REVS")));
|
||||
aml_append(method, aml_store(aml_arg(2), aml_name("FUNC")));
|
||||
aml_append(method, aml_store(handle, aml_name(NVDIMM_DSM_HANDLE)));
|
||||
aml_append(method, aml_store(aml_arg(1), aml_name(NVDIMM_DSM_REVISION)));
|
||||
aml_append(method, aml_store(aml_arg(2), aml_name(NVDIMM_DSM_FUNCTION)));
|
||||
|
||||
/*
|
||||
* The fourth parameter (Arg3) of _DSM is a package which contains
|
||||
|
@ -912,23 +927,23 @@ static void nvdimm_build_common_dsm(Aml *dev)
|
|||
pckg_buf = aml_local(3);
|
||||
aml_append(ifctx, aml_store(aml_index(pckg, aml_int(0)), pckg_index));
|
||||
aml_append(ifctx, aml_store(aml_derefof(pckg_index), pckg_buf));
|
||||
aml_append(ifctx, aml_store(pckg_buf, aml_name("FARG")));
|
||||
aml_append(ifctx, aml_store(pckg_buf, aml_name(NVDIMM_DSM_ARG3)));
|
||||
aml_append(method, ifctx);
|
||||
|
||||
/*
|
||||
* tell QEMU about the real address of DSM memory, then QEMU
|
||||
* gets the control and fills the result in DSM memory.
|
||||
*/
|
||||
aml_append(method, aml_store(dsm_mem, aml_name("NTFI")));
|
||||
aml_append(method, aml_store(dsm_mem, aml_name(NVDIMM_DSM_NOTIFY)));
|
||||
|
||||
dsm_out_buf_size = aml_local(1);
|
||||
/* RLEN is not included in the payload returned to guest. */
|
||||
aml_append(method, aml_subtract(aml_name("RLEN"), aml_int(4),
|
||||
dsm_out_buf_size));
|
||||
aml_append(method, aml_subtract(aml_name(NVDIMM_DSM_OUT_BUF_SIZE),
|
||||
aml_int(4), dsm_out_buf_size));
|
||||
aml_append(method, aml_store(aml_shiftleft(dsm_out_buf_size, aml_int(3)),
|
||||
dsm_out_buf_size));
|
||||
aml_append(method, aml_create_field(aml_name("ODAT"), aml_int(0),
|
||||
dsm_out_buf_size, "OBUF"));
|
||||
aml_append(method, aml_create_field(aml_name(NVDIMM_DSM_OUT_BUF),
|
||||
aml_int(0), dsm_out_buf_size, "OBUF"));
|
||||
aml_append(method, aml_concatenate(aml_buffer(0, NULL), aml_name("OBUF"),
|
||||
dsm_out_buf));
|
||||
aml_append(method, aml_return(dsm_out_buf));
|
||||
|
|
Loading…
Reference in a new issue