[PATCH v4 14/21] libacpi: Build DSDT for PVH guests

[Boris Ostrovsky <boris.ostrovsky@oracle.com>]

PVH guests require DSDT with only ACPI INFO (Xen-specific) and Processor
objects. We separate ASL's ACPI INFO definition into dsdt_acpi_info.asl so
that it can be included in ASLs for both HVM and PVH2.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
---
 tools/libacpi/Makefile  | 7 ++++++-
 tools/libacpi/mk_dsdt.c | 8 ++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/tools/libacpi/Makefile b/tools/libacpi/Makefile
index fdb08e6..83d6a8f 100644
--- a/tools/libacpi/Makefile
+++ b/tools/libacpi/Makefile
@@ -22,7 +22,7 @@ TMP_SUFFIX	= tmp__
 MK_DSDT = $(ACPI_BUILD_DIR)/mk_dsdt
 
 C_SRC-$(GPL) 	= dsdt_anycpu.c dsdt_15cpu.c dsdt_anycpu_qemu_xen.c
-C_SRC		= $(addprefix $(ACPI_BUILD_DIR)/, $(C_SRC-y))
+C_SRC		= $(addprefix $(ACPI_BUILD_DIR)/, dsdt_pvh.c $(C_SRC-y))
 H_SRC = $(addprefix $(ACPI_BUILD_DIR)/, ssdt_s3.h ssdt_s4.h ssdt_pm.h ssdt_tpm.h)
 
 vpath iasl $(PATH)
@@ -49,6 +49,11 @@ $(ACPI_BUILD_DIR)/dsdt_%cpu.asl: gpl/dsdt.asl $(MK_DSDT)
 	$(MK_DSDT) --debug=$(debug) --maxcpu $*  >> $@
 endif
 
+$(ACPI_BUILD_DIR)/dsdt_pvh.asl: dsdt_acpi_info.asl $(MK_DSDT)
+	printf "DefinitionBlock (\"DSDT.aml\", \"DSDT\", 5, \"Xen\", \"HVM\", 0)\n{" > $@
+	cat dsdt_acpi_info.asl >> $@
+	$(MK_DSDT) --debug=$(debug) --maxcpu any --dm-version none >> $@
+
 $(C_SRC): $(ACPI_BUILD_DIR)/%.c: iasl $(ACPI_BUILD_DIR)/%.asl
 	iasl -vs -p $(ACPI_BUILD_DIR)/$*.$(TMP_SUFFIX) -tc $(ACPI_BUILD_DIR)/$*.asl
 	sed -e 's/AmlCode/$*/g' $(ACPI_BUILD_DIR)/$*.hex >$@
diff --git a/tools/libacpi/mk_dsdt.c b/tools/libacpi/mk_dsdt.c
index e750820..8130cbd 100644
--- a/tools/libacpi/mk_dsdt.c
+++ b/tools/libacpi/mk_dsdt.c
@@ -23,6 +23,7 @@ static unsigned int indent_level;
 static bool debug = false;
 
 typedef enum dm_version {
+    QEMU_NONE,
     QEMU_XEN_TRADITIONAL,
     QEMU_XEN,
 } dm_version;
@@ -135,6 +136,8 @@ int main(int argc, char **argv)
                 dm_version = QEMU_XEN;
             } else if (strcmp(optarg, "qemu-xen-traditional") == 0) {
                 dm_version = QEMU_XEN_TRADITIONAL;
+            } else if (strcmp(optarg, "none") == 0) {
+                dm_version = QEMU_NONE;
             } else {
                 fprintf(stderr, "Unknown device model version `%s'.\n", optarg);
                 return -1;
@@ -252,6 +255,11 @@ int main(int argc, char **argv)
 
     pop_block();
 
+    if (dm_version == QEMU_NONE) {
+        pop_block();
+        return 0;
+    }
+
     /* Define GPE control method. */
     push_block("Scope", "\\_GPE");
     push_block("Method",
-- 
1.8.3.1


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