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target/ppc: Check effective address validity

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For Radix translation, the EA range is 64-bits. when EA(2:11) are
nonzero, a segment interrupt should occur.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>
Message-Id: <20211231073122.3183583-1-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Cédric Le Goater 2022-01-04 07:55:34 +01:00
parent 932de56970
commit 9b4eaee4d4
2 changed files with 6 additions and 0 deletions
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5
target/ppc/mmu-radix64.c
View file

@ -32,6 +32,11 @@ static bool ppc_radix64_get_fully_qualified_addr(const CPUPPCState *env,
vaddr eaddr, vaddr eaddr,
uint64_t *lpid, uint64_t *pid) uint64_t *lpid, uint64_t *pid)
{ {
/* When EA(2:11) are nonzero, raise a segment interrupt */
if (eaddr & ~R_EADDR_VALID_MASK) {
return false;
}
if (msr_hv) { /* MSR[HV] -> Hypervisor/bare metal */ if (msr_hv) { /* MSR[HV] -> Hypervisor/bare metal */
switch (eaddr & R_EADDR_QUADRANT) { switch (eaddr & R_EADDR_QUADRANT) {
case R_EADDR_QUADRANT0: case R_EADDR_QUADRANT0:

1
target/ppc/mmu-radix64.h
View file

@ -5,6 +5,7 @@
/* Radix Quadrants */ /* Radix Quadrants */
#define R_EADDR_MASK 0x3FFFFFFFFFFFFFFF #define R_EADDR_MASK 0x3FFFFFFFFFFFFFFF
#define R_EADDR_VALID_MASK 0xC00FFFFFFFFFFFFF
#define R_EADDR_QUADRANT 0xC000000000000000 #define R_EADDR_QUADRANT 0xC000000000000000
#define R_EADDR_QUADRANT0 0x0000000000000000 #define R_EADDR_QUADRANT0 0x0000000000000000
#define R_EADDR_QUADRANT1 0x4000000000000000 #define R_EADDR_QUADRANT1 0x4000000000000000