[PATCH 2/2] treewide: disable spectre mitigation on unaffected Arm64 targets

[Qingfang Deng]

Cortex-A53 is not vulnerable to any Spectre variants.

Ref: https://developer.arm.com/Arm%20Security%20Center/Speculative%20Processor%20Vulnerability
Signed-off-by: Qingfang Deng <dqfext at gmail.com>
---
 target/linux/bcm27xx/bcm2710/config-6.1  | 1 +
 target/linux/bcm4908/config-5.15         | 1 +
 target/linux/bcm4908/config-6.1          | 1 +
 target/linux/mediatek/filogic/config-6.1 | 1 +
 target/linux/mediatek/mt7622/config-6.1  | 1 +
 target/linux/mvebu/cortexa53/config-6.1  | 1 +
 target/linux/qualcommax/config-6.1       | 1 +
 target/linux/sunxi/cortexa53/config-6.1  | 1 +
 8 files changed, 8 insertions(+)

diff --git a/target/linux/bcm27xx/bcm2710/config-6.1 b/target/linux/bcm27xx/bcm2710/config-6.1
index f29d8483f8..e5b357f2fa 100644
--- a/target/linux/bcm27xx/bcm2710/config-6.1
+++ b/target/linux/bcm27xx/bcm2710/config-6.1
@@ -303,6 +303,7 @@ CONFIG_MFD_CORE=y
 CONFIG_MFD_SYSCON=y
 CONFIG_MICROCHIP_PHY=y
 CONFIG_MIGRATION=y
+# CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY is not set
 CONFIG_MMC=y
 # CONFIG_MMC_BCM2835 is not set
 CONFIG_MMC_BCM2835_DMA=y
diff --git a/target/linux/bcm4908/config-5.15 b/target/linux/bcm4908/config-5.15
index 892985f7f4..b1594ea8d8 100644
--- a/target/linux/bcm4908/config-5.15
+++ b/target/linux/bcm4908/config-5.15
@@ -135,6 +135,7 @@ CONFIG_MDIO_DEVRES=y
 CONFIG_MEMFD_CREATE=y
 CONFIG_MFD_SYSCON=y
 CONFIG_MIGRATION=y
+# CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY is not set
 CONFIG_MODULES_USE_ELF_RELA=y
 CONFIG_MTD_BRCM_U_BOOT=y
 CONFIG_MTD_CMDLINE_PARTS=y
diff --git a/target/linux/bcm4908/config-6.1 b/target/linux/bcm4908/config-6.1
index 8311277237..086d387bc7 100644
--- a/target/linux/bcm4908/config-6.1
+++ b/target/linux/bcm4908/config-6.1
@@ -136,6 +136,7 @@ CONFIG_MDIO_DEVRES=y
 CONFIG_MEMFD_CREATE=y
 CONFIG_MFD_SYSCON=y
 CONFIG_MIGRATION=y
+# CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY is not set
 CONFIG_MODULES_USE_ELF_RELA=y
 CONFIG_MTD_BRCM_U_BOOT=y
 CONFIG_MTD_CMDLINE_PARTS=y
diff --git a/target/linux/mediatek/filogic/config-6.1 b/target/linux/mediatek/filogic/config-6.1
index 34aa2e76b6..276c6fe6c4 100644
--- a/target/linux/mediatek/filogic/config-6.1
+++ b/target/linux/mediatek/filogic/config-6.1
@@ -232,6 +232,7 @@ CONFIG_MEMFD_CREATE=y
 CONFIG_MESSAGE_LOGLEVEL_DEFAULT=7
 CONFIG_MFD_SYSCON=y
 CONFIG_MIGRATION=y
+# CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY is not set
 CONFIG_MMC=y
 CONFIG_MMC_BLOCK=y
 CONFIG_MMC_CQHCI=y
diff --git a/target/linux/mediatek/mt7622/config-6.1 b/target/linux/mediatek/mt7622/config-6.1
index 84af474e52..f10f1f7204 100644
--- a/target/linux/mediatek/mt7622/config-6.1
+++ b/target/linux/mediatek/mt7622/config-6.1
@@ -234,6 +234,7 @@ CONFIG_MEMFD_CREATE=y
 CONFIG_MESSAGE_LOGLEVEL_DEFAULT=7
 CONFIG_MFD_SYSCON=y
 CONFIG_MIGRATION=y
+# CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY is not set
 CONFIG_MMC=y
 CONFIG_MMC_BLOCK=y
 CONFIG_MMC_CQHCI=y
diff --git a/target/linux/mvebu/cortexa53/config-6.1 b/target/linux/mvebu/cortexa53/config-6.1
index 3534537b54..d8dd985365 100644
--- a/target/linux/mvebu/cortexa53/config-6.1
+++ b/target/linux/mvebu/cortexa53/config-6.1
@@ -52,6 +52,7 @@ CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
 CONFIG_MAILBOX=y
 # CONFIG_MAILBOX_TEST is not set
 CONFIG_MFD_SYSCON=y
+# CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY is not set
 CONFIG_MMC_SDHCI_XENON=y
 CONFIG_MODULES_USE_ELF_RELA=y
 CONFIG_MVEBU_GICP=y
diff --git a/target/linux/qualcommax/config-6.1 b/target/linux/qualcommax/config-6.1
index 35275ff0ce..eb46ae7cd0 100644
--- a/target/linux/qualcommax/config-6.1
+++ b/target/linux/qualcommax/config-6.1
@@ -225,6 +225,7 @@ CONFIG_MEMFD_CREATE=y
 # CONFIG_MFD_QCOM_RPM is not set
 CONFIG_MFD_SYSCON=y
 CONFIG_MIGRATION=y
+# CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY is not set
 CONFIG_MMC=y
 CONFIG_MMC_BLOCK=y
 CONFIG_MMC_BLOCK_MINORS=32
diff --git a/target/linux/sunxi/cortexa53/config-6.1 b/target/linux/sunxi/cortexa53/config-6.1
index f57c664540..5331352386 100644
--- a/target/linux/sunxi/cortexa53/config-6.1
+++ b/target/linux/sunxi/cortexa53/config-6.1
@@ -52,6 +52,7 @@ CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
 CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
 CONFIG_MDIO_BUS_MUX=y
 CONFIG_MICREL_PHY=y
+# CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY is not set
 CONFIG_MODULES_USE_ELF_RELA=y
 CONFIG_MUSB_PIO_ONLY=y
 CONFIG_NEED_SG_DMA_LENGTH=y
-- 
2.34.1