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authorJames Hogan <[email protected]>2016-07-08 10:53:25 +0000
committerPaolo Bonzini <[email protected]>2016-08-01 16:42:24 +0000
commit0d17aea5c27d7d748b1d8116d275b2b17dc5cad6 (patch)
tree39616859bb440c62c4421ff3ad4e56532492ec89 /scripts/gcc-plugins/sancov_plugin.c
parentMIPS: KVM: Set CP0_Status.KX on MIPS64 (diff)
downloadkernel-0d17aea5c27d7d748b1d8116d275b2b17dc5cad6.tar.gz
kernel-0d17aea5c27d7d748b1d8116d275b2b17dc5cad6.zip
MIPS: KVM: Use 64-bit CP0_EBase when appropriate
Update the KVM entry point to write CP0_EBase as a 64-bit register when it is 64-bits wide, and to set the WG (write gate) bit if it exists in order to write bits 63:30 (or 31:30 on MIPS32). Prior to MIPS64r6 it was UNDEFINED to perform a 64-bit read or write of a 32-bit COP0 register. Since this is dynamically generated code, generate the right type of access depending on whether the kernel is 64-bit and cpu_has_ebase_wg. Signed-off-by: James Hogan <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: "Radim Krčmář" <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'scripts/gcc-plugins/sancov_plugin.c')
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