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authorNikunj A Dadhania <nikunj@linux.vnet.ibm.com>2016-09-20 22:05:01 +0530
committerDavid Gibson <david@gibson.dropbear.id.au>2016-09-23 12:39:07 +1000
commitd76ab5e1c7db5f064700b9c3cb0924ccfd9017e5 (patch)
tree02a6851b90b0fe8d6cede2dd4c0041ee416336b3 /target-ppc/cpu.h
parente3cffe6fad29e07d401eabb913a6d88501d5c143 (diff)
downloadqemu-arm-d76ab5e1c7db5f064700b9c3cb0924ccfd9017e5.tar.gz
target-ppc: tlbie/tlbivax should have global effect
tlbie (BookS) and tlbivax (BookE) plus the H_CALLs(pseries) should have a global effect. Introduces TLB_NEED_GLOBAL_FLUSH flag. During lazy tlb flush, after taking care of pending local flushes, check broadcast flush(at context synchronizing event ptesync/tlbsync, etc) is needed. Depending on the bitmask state of the tlb_need_flush, tlb is flushed from other cpus if needed and the flags are cleared. Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [dwg: Use 'true' instead of '1' for call to check_tlb_flush()] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target-ppc/cpu.h')
-rw-r--r--target-ppc/cpu.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 96d2deffce..1c90adb5d7 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1010,6 +1010,7 @@ struct CPUPPCState {
bool kvm_sw_tlb; /* non-zero if KVM SW TLB API is active */
uint32_t tlb_need_flush; /* Delayed flush needed */
#define TLB_NEED_LOCAL_FLUSH 0x1
+#define TLB_NEED_GLOBAL_FLUSH 0x2
#endif
/* Other registers */