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target/arm: Define init-svtor property for the reset secure VTOR value

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The Cortex-M33 allows the system to specify the reset value of the
secure Vector Table Offset Register (VTOR) by asserting config
signals. In particular, guest images for the MPS2 AN505 board rely
on the MPS2's initial VTOR being correct for that board.
Implement a QEMU property so board and SoC code can set the reset
value to the correct value.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180220180325.29818-7-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2018-03-02 10:45:37 +00:00
parent c60c1b0d5a
commit 38e2a77c9d
2 changed files with 17 additions and 4 deletions
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3
target/arm/cpu.h
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@ -731,6 +731,9 @@ struct ARMCPU {
*/
uint32_t psci_conduit;
/* For v8M, initial value of the Secure VTOR */
uint32_t init_svtor;
/* [QEMU_]KVM_ARM_TARGET_* constant for this CPU, or
* QEMU_KVM_ARM_TARGET_NONE if the kernel doesn't support this CPU type.
*/