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[Qemu-devel] [PATCH 08/15] nvdimm acpi: save arg3 of _DSM method
From: |
Xiao Guangrong |
Subject: |
[Qemu-devel] [PATCH 08/15] nvdimm acpi: save arg3 of _DSM method |
Date: |
Thu, 17 Mar 2016 16:32:54 +0800 |
Check if the input Arg3 is valid then store it into ARG3 if it is
needed
Signed-off-by: Xiao Guangrong <address@hidden>
---
hw/acpi/nvdimm.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
index 586c02a..38aba3d 100644
--- a/hw/acpi/nvdimm.c
+++ b/hw/acpi/nvdimm.c
@@ -486,6 +486,7 @@ void nvdimm_init_acpi_state(AcpiNVDIMMState *state,
MemoryRegion *io,
static void nvdimm_build_common_dsm(Aml *dev)
{
Aml *method, *ifctx, *function, *dsm_mem, *unpatched, *result_size;
+ Aml *pckg, *pckg_index, *pckg_buf;
uint8_t byte_list[1];
method = aml_method(NVDIMM_COMMON_DSM, 5, AML_SERIALIZED);
@@ -522,6 +523,25 @@ static void nvdimm_build_common_dsm(Aml *dev)
aml_append(method, aml_store(aml_arg(2), aml_name("FUNC")));
/*
+ * The fourth parameter (Arg3) of _DSM is a package which contains
+ * a buffer, the layout of the buffer is specified by UUID (Arg0),
+ * Revision ID (Arg1) and Function Index (Arg2) which are documented
+ * in the DSM Spec.
+ */
+ pckg = aml_arg(3);
+ ifctx = aml_if(aml_and(aml_equal(aml_object_type(pckg),
+ aml_int(4 /* Package */)) /* It is a Package? */,
+ aml_equal(aml_sizeof(pckg), aml_int(1)) /* 1 element? */,
+ NULL));
+
+ pckg_index = aml_local(2);
+ 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("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.
*/
--
1.8.3.1
- [Qemu-devel] [PATCH 00/15] NVDIMM: introduce nvdimm label support, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 01/15] pc-dimm: get memory region from ->get_memory_region(), Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 02/15] pc-dimm: introduce realize callback, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 05/15] acpi: add aml_object_type, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 03/15] pc-dimm: keep the state of the whole backend memory, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 04/15] nvdimm: support nvdimm label, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 06/15] acpi: add aml_call5, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 07/15] nvdimm acpi: set HDLE properly, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 08/15] nvdimm acpi: save arg3 of _DSM method,
Xiao Guangrong <=
- [Qemu-devel] [PATCH 10/15] nvdimm acpi: abstract the operations for root device and nvdimm devices, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 09/15] nvdimm acpi: check UUID, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 11/15] nvdimm acpi: check revision, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 13/15] nvdimm acpi: support Get Namespace Label Data function, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 12/15] nvdimm acpi: support Get Namespace Label Size function, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 14/15] nvdimm acpi: support Set Namespace Label Data function, Xiao Guangrong, 2016/03/17