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spapr/xive: EQ page should be naturally aligned

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When the OS configures the EQ page in which to receive event
notifications from the XIVE interrupt controller, the page should be
naturally aligned. Add this check.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190508171946.657-2-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
[dwg: Minor change for printf warning on some platforms]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2019-05-08 19:19:44 +02:00 • committed by David Gibson
parent 4c406ca734
commit 7f9136f90d
1 changed files with 6 additions and 0 deletions
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6
hw/intc/spapr_xive.c
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@ -993,6 +993,12 @@ static target_ulong h_int_set_queue_config(PowerPCCPU *cpu,
case 16:
case 21:
case 24:
if (!QEMU_IS_ALIGNED(qpage, 1ul << qsize)) {
qemu_log_mask(LOG_GUEST_ERROR, "XIVE: EQ @0x%" HWADDR_PRIx
" is not naturally aligned with %" HWADDR_PRIx "\n",
qpage, (hwaddr)1 << qsize);
return H_P4;
}
end.w2 = cpu_to_be32((qpage >> 32) & 0x0fffffff);
end.w3 = cpu_to_be32(qpage & 0xffffffff);
end.w0 |= cpu_to_be32(END_W0_ENQUEUE);