From: "Cédric Le Goater" <clg@kaod.org>
To: David Gibson <david@gibson.dropbear.id.au>
Cc: "Cédric Le Goater" <clg@kaod.org>,
qemu-ppc@nongnu.org, "Greg Kurz" <groug@kaod.org>,
"Suraj Jitindar Singh" <sjitindarsingh@gmail.com>,
qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH 02/10] ppc/xive: Make the PIPR register readonly
Date: Sun, 30 Jun 2019 22:45:53 +0200 [thread overview]
Message-ID: <20190630204601.30574-3-clg@kaod.org> (raw)
In-Reply-To: <20190630204601.30574-1-clg@kaod.org>
When the hypervisor (KVM) dispatches a vCPU on a HW thread, it restores
its thread interrupt context. The Pending Interrupt Priority Register
(PIPR) is computed from the Interrupt Pending Buffer (IPB) and stores
should not be allowed to change its value.
Fixes: 207d9fe98510 ("ppc/xive: introduce the XIVE interrupt thread context")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/intc/xive.c | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index 3b1f9520ae9f..534f56f86bd5 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -182,31 +182,31 @@ static uint64_t xive_tm_vt_poll(XiveTCTX *tctx, hwaddr offset, unsigned size)
*/
static const uint8_t xive_tm_hw_view[] = {
- /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-1 OS */ 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-2 POOL */ 0, 0, 3, 3, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-3 PHYS */ 3, 3, 3, 3, 0, 3, 0, 3, 3, 0, 0, 3, 3, 3, 3, 0,
+ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-0 User */
+ 3, 3, 3, 3, 3, 3, 0, 2, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-1 OS */
+ 0, 0, 3, 3, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-2 POOL */
+ 3, 3, 3, 3, 0, 3, 0, 2, 3, 0, 0, 3, 3, 3, 3, 0, /* QW-3 PHYS */
};
static const uint8_t xive_tm_hv_view[] = {
- /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-1 OS */ 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-2 POOL */ 0, 0, 3, 3, 0, 0, 0, 0, 0, 3, 3, 3, 0, 0, 0, 0,
- /* QW-3 PHYS */ 3, 3, 3, 3, 0, 3, 0, 3, 3, 0, 0, 3, 0, 0, 0, 0,
+ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-0 User */
+ 3, 3, 3, 3, 3, 3, 0, 2, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-1 OS */
+ 0, 0, 3, 3, 0, 0, 0, 0, 0, 3, 3, 3, 0, 0, 0, 0, /* QW-2 POOL */
+ 3, 3, 3, 3, 0, 3, 0, 2, 3, 0, 0, 3, 0, 0, 0, 0, /* QW-3 PHYS */
};
static const uint8_t xive_tm_os_view[] = {
- /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-1 OS */ 2, 3, 2, 2, 2, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0,
- /* QW-2 POOL */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* QW-3 PHYS */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-0 User */
+ 2, 3, 2, 2, 2, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-1 OS */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-2 POOL */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-3 PHYS */
};
static const uint8_t xive_tm_user_view[] = {
- /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* QW-1 OS */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* QW-2 POOL */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* QW-3 PHYS */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-0 User */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-1 OS */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-2 POOL */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-3 PHYS */
};
/*
--
2.21.0
next prev parent reply other threads:[~2019-06-30 20:51 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-30 20:45 [Qemu-devel] [PATCH 00/10] ppc/pnv: add XIVE support for KVM guests Cédric Le Goater
2019-06-30 20:45 ` [Qemu-devel] [PATCH 01/10] ppc/xive: Force the Physical CAM line value to group mode Cédric Le Goater
2019-07-01 5:26 ` David Gibson
2019-06-30 20:45 ` Cédric Le Goater [this message]
2019-07-01 5:27 ` [Qemu-devel] [PATCH 02/10] ppc/xive: Make the PIPR register readonly David Gibson
2019-06-30 20:45 ` [Qemu-devel] [PATCH 03/10] ppc/pnv: Rework cache watch model of PnvXIVE Cédric Le Goater
2019-07-01 5:32 ` David Gibson
2019-06-30 20:45 ` [Qemu-devel] [PATCH 04/10] ppc/xive: Fix TM_PULL_POOL_CTX special operation Cédric Le Goater
2019-07-01 5:32 ` David Gibson
2019-06-30 20:45 ` [Qemu-devel] [PATCH 05/10] ppc/xive: Implement TM_PULL_OS_CTX special command Cédric Le Goater
2019-06-30 20:45 ` [Qemu-devel] [PATCH 06/10] ppc/xive: Provide escalation support Cédric Le Goater
2019-06-30 20:45 ` [Qemu-devel] [PATCH 07/10] ppc/xive: Improve 'info pic' support Cédric Le Goater
2019-06-30 20:45 ` [Qemu-devel] [PATCH 08/10] ppc/xive: Extend XiveTCTX with an router object pointer Cédric Le Goater
2019-07-03 2:07 ` David Gibson
2019-07-03 5:54 ` Cédric Le Goater
2019-07-12 1:15 ` David Gibson
2019-07-15 15:45 ` Cédric Le Goater
2019-07-17 2:08 ` David Gibson
2019-07-17 8:35 ` Cédric Le Goater
2019-06-30 20:46 ` [Qemu-devel] [PATCH 09/10] ppc/xive: Synthesize interrupt from the saved IPB in the NVT Cédric Le Goater
2019-06-30 20:46 ` [Qemu-devel] [PATCH 10/10] ppc/pnv: Dump the XIVE NVT table Cédric Le Goater
2019-07-03 2:10 ` [Qemu-devel] [PATCH 00/10] ppc/pnv: add XIVE support for KVM guests David Gibson
2019-07-03 5:56 ` Cédric Le Goater
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