diff options
| author | Leandro Lupori <leandro.lupori@eldorado.org.br> | 2022-06-28 10:39:57 -0300 |
|---|---|---|
| committer | Daniel Henrique Barboza <danielhb413@gmail.com> | 2022-07-18 13:59:43 -0300 |
| commit | 3c2e80ad2fcf004fcf74bf690dc1c952320a5b52 (patch) | |
| tree | 233b4f9e2594a618c86ab3e92904a0cd3dc77a3b /hw/ppc/spapr.c | |
| parent | 3778aa970f21b475ca16befcf271078602104fe6 (diff) | |
ppc: Check partition and process table alignment
Check if partition and process tables are properly aligned, in
their size, according to PowerISA 3.1B, Book III 6.7.6 programming
note. Hardware and KVM also raise an exception in these cases.
Signed-off-by: Leandro Lupori <leandro.lupori@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220628133959.15131-2-leandro.lupori@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Diffstat (limited to 'hw/ppc/spapr.c')
| -rw-r--r-- | hw/ppc/spapr.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 3a5112899e..bc9ba6e6dc 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -1336,6 +1336,11 @@ static bool spapr_get_pate(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu, patb = spapr->nested_ptcr & PTCR_PATB; pats = spapr->nested_ptcr & PTCR_PATS; + /* Check if partition table is properly aligned */ + if (patb & MAKE_64BIT_MASK(0, pats + 12)) { + return false; + } + /* Calculate number of entries */ pats = 1ull << (pats + 12 - 4); if (pats <= lpid) { |