[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] [PATCH 2 of 2] Add configuration options to selectively disable S3 and S4 ACPI power states



# HG changeset patch
# User Paul Durrant <paul.durrant@xxxxxxxxxx>
# Date 1321615161 0
# Node ID 5118aa3562ea7d9a3d8fb742d378f9347ae62836
# Parent  8a29891d6a98002b299d73253935c161ecf393a1
Add configuration options to selectively disable S3 and S4 ACPI power states.

Introduce acpi_s3 and acpi_s4 configuration options (default=1). The S3 and S4
packages are moved into separate SSDTs and their inclusion is controlled by the
new configuration options.

Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>

diff -r 8a29891d6a98 -r 5118aa3562ea tools/firmware/hvmloader/acpi/Makefile
--- a/tools/firmware/hvmloader/acpi/Makefile    Fri Nov 18 10:33:33 2011 +0000
+++ b/tools/firmware/hvmloader/acpi/Makefile    Fri Nov 18 11:19:21 2011 +0000
@@ -26,7 +26,7 @@ CFLAGS += $(CFLAGS_xeninclude)
 vpath iasl $(PATH)
 all: acpi.a
 
-ssdt_pm.h ssdt_tpm.h: %.h: %.asl iasl
+ssdt_s3.h ssdt_s4.h ssdt_pm.h ssdt_tpm.h: %.h: %.asl iasl
        iasl -vs -p $* -tc $<
        sed -e 's/AmlCode/$*/g' $*.hex >$@
        rm -f $*.hex $*.aml
@@ -57,7 +57,7 @@ iasl:
        @echo 
        @exit 1
 
-build.o: ssdt_pm.h ssdt_tpm.h
+build.o: ssdt_s3.h ssdt_s4.h ssdt_pm.h ssdt_tpm.h
 
 acpi.a: $(OBJS)
        $(AR) rc $@ $(OBJS)
diff -r 8a29891d6a98 -r 5118aa3562ea tools/firmware/hvmloader/acpi/build.c
--- a/tools/firmware/hvmloader/acpi/build.c     Fri Nov 18 10:33:33 2011 +0000
+++ b/tools/firmware/hvmloader/acpi/build.c     Fri Nov 18 11:19:21 2011 +0000
@@ -17,6 +17,8 @@
  */
 
 #include "acpi2_0.h"
+#include "ssdt_s3.h"
+#include "ssdt_s4.h"
 #include "ssdt_tpm.h"
 #include "ssdt_pm.h"
 #include "../config.h"
@@ -235,6 +237,26 @@ static int construct_secondary_tables(un
         table_ptrs[nr_tables++] = (unsigned long)ssdt;
     }
 
+    if ( !strncmp(xenstore_read("platform/acpi_s3", "1"), "1", 1) )
+    {
+        ssdt = mem_alloc(sizeof(ssdt_s3), 16);
+        if (!ssdt) return -1;
+        memcpy(ssdt, ssdt_s3, sizeof(ssdt_s3));
+        table_ptrs[nr_tables++] = (unsigned long)ssdt;
+    } else {
+        printf("S3 disabled\n");
+    }
+
+    if ( !strncmp(xenstore_read("platform/acpi_s4", "1"), "1", 1) )
+    {
+        ssdt = mem_alloc(sizeof(ssdt_s4), 16);
+        if (!ssdt) return -1;
+        memcpy(ssdt, ssdt_s4, sizeof(ssdt_s4));
+        table_ptrs[nr_tables++] = (unsigned long)ssdt;
+    } else {
+        printf("S4 disabled\n");
+    }
+
     /* TPM TCPA and SSDT. */
     tis_hdr = (uint16_t *)0xFED40F00;
     if ( (tis_hdr[0] == tis_signature[0]) &&
diff -r 8a29891d6a98 -r 5118aa3562ea tools/firmware/hvmloader/acpi/dsdt.asl
--- a/tools/firmware/hvmloader/acpi/dsdt.asl    Fri Nov 18 10:33:33 2011 +0000
+++ b/tools/firmware/hvmloader/acpi/dsdt.asl    Fri Nov 18 11:19:21 2011 +0000
@@ -27,24 +27,7 @@ DefinitionBlock ("DSDT.aml", "DSDT", 2, 
     Name (\APCL, 0x00010000)
     Name (\PUID, 0x00)
 
-    /*
-     * S3 (suspend-to-ram), S4 (suspend-to-disc) and S5 (power-off) type codes:
-     * must match piix4 emulation.
-     */
-    Name (\_S3, Package (0x04)
-    {
-        0x01,  /* PM1a_CNT.SLP_TYP */
-        0x01,  /* PM1b_CNT.SLP_TYP */
-        0x0,   /* reserved */
-        0x0    /* reserved */
-    })
-    Name (\_S4, Package (0x04)
-    {
-        0x00,  /* PM1a_CNT.SLP_TYP */
-        0x00,  /* PM1b_CNT.SLP_TYP */
-        0x00,  /* reserved */
-        0x00   /* reserved */
-    })
+    /* _S3 and _S4 are in separate SSDTs */
     Name (\_S5, Package (0x04)
     {
         0x00,  /* PM1a_CNT.SLP_TYP */
diff -r 8a29891d6a98 -r 5118aa3562ea tools/firmware/hvmloader/acpi/ssdt_s3.asl
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/firmware/hvmloader/acpi/ssdt_s3.asl Fri Nov 18 11:19:21 2011 +0000
@@ -0,0 +1,32 @@
+/*
+ * ssdt_s3.asl
+ *
+ * Copyright (c) 2011  Citrix Systems, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+DefinitionBlock ("SSDT_S3.aml", "SSDT", 2, "Xen", "HVM", 0)
+{
+    /* Must match piix emulation */
+    Name (\_S3, Package (0x04)
+    {
+        0x01,  /* PM1a_CNT.SLP_TYP */
+        0x01,  /* PM1b_CNT.SLP_TYP */
+        0x0,   /* reserved */
+        0x0    /* reserved */
+    })
+}
+
diff -r 8a29891d6a98 -r 5118aa3562ea tools/firmware/hvmloader/acpi/ssdt_s4.asl
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/firmware/hvmloader/acpi/ssdt_s4.asl Fri Nov 18 11:19:21 2011 +0000
@@ -0,0 +1,32 @@
+/*
+ * ssdt_s4.asl
+ *
+ * Copyright (c) 2011  Citrix Systems, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+DefinitionBlock ("SSDT_S4.aml", "SSDT", 2, "Xen", "HVM", 0)
+{
+    /* Must match piix emulation */
+    Name (\_S4, Package (0x04)
+    {
+        0x00,  /* PM1a_CNT.SLP_TYP */
+        0x00,  /* PM1b_CNT.SLP_TYP */
+        0x00,  /* reserved */
+        0x00   /* reserved */
+    })
+}
+
diff -r 8a29891d6a98 -r 5118aa3562ea tools/libxl/libxl_create.c
--- a/tools/libxl/libxl_create.c        Fri Nov 18 10:33:33 2011 +0000
+++ b/tools/libxl/libxl_create.c        Fri Nov 18 11:19:21 2011 +0000
@@ -93,6 +93,8 @@ int libxl_init_build_info(libxl_ctx *ctx
         b_info->u.hvm.pae = 1;
         b_info->u.hvm.apic = 1;
         b_info->u.hvm.acpi = 1;
+        b_info->u.hvm.acpi_s3 = 1;
+        b_info->u.hvm.acpi_s4 = 1;
         b_info->u.hvm.nx = 1;
         b_info->u.hvm.viridian = 0;
         b_info->u.hvm.hpet = 1;
@@ -189,9 +191,13 @@ int libxl__domain_build(libxl__gc *gc,
         vments[4] = "start_time";
         vments[5] = libxl__sprintf(gc, "%lu.%02d", 
start_time.tv_sec,(int)start_time.tv_usec/10000);
 
-        localents = libxl__calloc(gc, 3, sizeof(char *));
+        localents = libxl__calloc(gc, 7, sizeof(char *));
         localents[0] = "platform/acpi";
         localents[1] = (info->u.hvm.acpi) ? "1" : "0";
+        localents[2] = "platform/acpi_s3";
+        localents[3] = (info->u.hvm.acpi_s3) ? "1" : "0";
+        localents[4] = "platform/acpi_s4";
+        localents[5] = (info->u.hvm.acpi_s4) ? "1" : "0";
 
         break;
     case LIBXL_DOMAIN_TYPE_PV:
diff -r 8a29891d6a98 -r 5118aa3562ea tools/libxl/libxl_types.idl
--- a/tools/libxl/libxl_types.idl       Fri Nov 18 10:33:33 2011 +0000
+++ b/tools/libxl/libxl_types.idl       Fri Nov 18 11:19:21 2011 +0000
@@ -167,6 +167,8 @@ libxl_domain_build_info = Struct("domain
                                        ("pae", bool),
                                        ("apic", bool),
                                        ("acpi", bool),
+                                       ("acpi_s3", bool),
+                                       ("acpi_s4", bool),
                                        ("nx", bool),
                                        ("viridian", bool),
                                        ("timeoffset", string),
diff -r 8a29891d6a98 -r 5118aa3562ea tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c  Fri Nov 18 10:33:33 2011 +0000
+++ b/tools/libxl/xl_cmdimpl.c  Fri Nov 18 11:19:21 2011 +0000
@@ -683,6 +683,10 @@ static void parse_config_data(const char
             b_info->u.hvm.apic = l;
         if (!xlu_cfg_get_long (config, "acpi", &l))
             b_info->u.hvm.acpi = l;
+        if (!xlu_cfg_get_long (config, "acpi_s3", &l))
+            b_info->u.hvm.acpi_s3 = l;
+        if (!xlu_cfg_get_long (config, "acpi_s4", &l))
+            b_info->u.hvm.acpi_s4 = l;
         if (!xlu_cfg_get_long (config, "nx", &l))
             b_info->u.hvm.nx = l;
         if (!xlu_cfg_get_long (config, "viridian", &l))

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.