[PATCH 2/2] arm/virt/acpi: remove _ADR from devices identified by _HID

[Heyi Guo]

According to ACPI spec, _ADR should be used for device which is on a
bus that has a standard enumeration algorithm. It does not make sense
to have a _ADR object for devices which already have _HID and will be
enumerated by OSPM.

Signed-off-by: Heyi Guo <address@hidden>

---
Cc: Shannon Zhao <address@hidden>
Cc: Peter Maydell <address@hidden>
Cc: "Michael S. Tsirkin" <address@hidden>
Cc: Igor Mammedov <address@hidden>
Cc: address@hidden
Cc: address@hidden
---
 hw/arm/virt-acpi-build.c          |   8 --------
 tests/data/acpi/virt/DSDT         | Bin 18449 -> 18426 bytes
 tests/data/acpi/virt/DSDT.memhp   | Bin 19786 -> 19763 bytes
 tests/data/acpi/virt/DSDT.numamem | Bin 18449 -> 18426 bytes
 4 files changed, 8 deletions(-)

diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 9f4c7d1889..be752c0ad8 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -78,11 +78,6 @@ static void acpi_dsdt_add_uart(Aml *scope, const MemMapEntry 
*uart_memmap,
                              AML_EXCLUSIVE, &uart_irq, 1));
     aml_append(dev, aml_name_decl("_CRS", crs));
 
-    /* The _ADR entry is used to link this device to the UART described
-     * in the SPCR table, i.e. SPCR.base_address.address == _ADR.
-     */
-    aml_append(dev, aml_name_decl("_ADR", aml_int(uart_memmap->base)));
-
     aml_append(scope, dev);
 }
 
@@ -170,7 +165,6 @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry 
*memmap,
     aml_append(dev, aml_name_decl("_CID", aml_string("PNP0A03")));
     aml_append(dev, aml_name_decl("_SEG", aml_int(0)));
     aml_append(dev, aml_name_decl("_BBN", aml_int(0)));
-    aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
     aml_append(dev, aml_name_decl("_UID", aml_string("PCI0")));
     aml_append(dev, aml_name_decl("_STR", aml_unicode("PCIe 0 Device")));
     aml_append(dev, aml_name_decl("_CCA", aml_int(1)));
@@ -334,7 +328,6 @@ static void acpi_dsdt_add_gpio(Aml *scope, const 
MemMapEntry *gpio_memmap,
 {
     Aml *dev = aml_device("GPO0");
     aml_append(dev, aml_name_decl("_HID", aml_string("ARMH0061")));
-    aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
     aml_append(dev, aml_name_decl("_UID", aml_int(0)));
 
     Aml *crs = aml_resource_template();
@@ -364,7 +357,6 @@ static void acpi_dsdt_add_power_button(Aml *scope)
 {
     Aml *dev = aml_device(ACPI_POWER_BUTTON_DEVICE);
     aml_append(dev, aml_name_decl("_HID", aml_string("PNP0C0C")));
-    aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
     aml_append(dev, aml_name_decl("_UID", aml_int(0)));
     aml_append(scope, dev);
 }
diff --git a/tests/data/acpi/virt/DSDT b/tests/data/acpi/virt/DSDT
index 
b5895cb22446860a0b9be3d32ec856feb388be4c..a759ff739a071d5fbf50519a6aea296e5e0f1e0c
 100644
GIT binary patch
delta 72
zcmbO@f$>*ABbQ6COUN&G1_q{66S<_BT5Bh&t1wzk^tIeLL4lL8ZSqD=gU!!5x$Pt+
c1HyxxIO07#U3dfh0t}oDoEbRcLp@y>07w882mk;8

delta 94
zcmey>&p2@cBbQ6CONgKc0|V26iCof5J#`b+RhV2^Ci+-%al|{i1o1F1FmP^cRp4ao
tnY@hCfEg&X`7$S;oxFTNc#soEyoaX?Z-8HbfwO@#16Tu)4E1zj005fm7mWY_

diff --git a/tests/data/acpi/virt/DSDT.memhp b/tests/data/acpi/virt/DSDT.memhp
index 
69ad844f65d047973a3e55198beecd45a35b8fce..6e5cc61977e4cd24f765fec0693f75a528c144c1
 100644
GIT binary patch
delta 72
zcmX>#i*fTTMlP3Nmk?uL1_q|eiCof5eHSLGt1wzk^tIeLL4lL8ZSqD=gU!!5U7RH)
c1HyxxIO07#U3dfh0t}oDoEbRcLp@y>03)CjmjD0&

delta 94
zcmdlyi}BPfMlP3Nmk=*s1_q}3iCof5t(PXMt1!8;O!Tqj;)r*23F2X3VBp-?s=&$E
tGkF=O0W(l&^JPwVXL<R6@E|9Scn?n(-T=P<17`zg2CxPo8S3f6006qZ7#siq

diff --git a/tests/data/acpi/virt/DSDT.numamem 
b/tests/data/acpi/virt/DSDT.numamem
index 
b5895cb22446860a0b9be3d32ec856feb388be4c..a759ff739a071d5fbf50519a6aea296e5e0f1e0c
 100644
GIT binary patch
delta 72
zcmbO@f$>*ABbQ6COUN&G1_q{66S<_BT5Bh&t1wzk^tIeLL4lL8ZSqD=gU!!5x$Pt+
c1HyxxIO07#U3dfh0t}oDoEbRcLp@y>07w882mk;8

delta 94
zcmey>&p2@cBbQ6CONgKc0|V26iCof5J#`b+RhV2^Ci+-%al|{i1o1F1FmP^cRp4ao
tnY@hCfEg&X`7$S;oxFTNc#soEyoaX?Z-8HbfwO@#16Tu)4E1zj005fm7mWY_

-- 
2.19.1