From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: kvmarm@lists.linux.dev
Cc: kvm@vger.kernel.org, linux-coco@lists.linux.dev,
linux-arm-kernel@lists.infradead.org, maz@kernel.org,
alexandru.elisei@arm.com, joey.gouly@arm.com,
steven.price@arm.com, james.morse@arm.com,
oliver.upton@linux.dev, yuzenghui@huawei.com,
andrew.jones@linux.dev, eric.auger@redhat.com,
Suzuki K Poulose <suzuki.poulose@arm.com>
Subject: [kvm-unit-tests PATCH 22/33] arm: gic-v3-its: Use shared pages wherever needed
Date: Fri, 12 Apr 2024 11:33:57 +0100 [thread overview]
Message-ID: <20240412103408.2706058-23-suzuki.poulose@arm.com> (raw)
In-Reply-To: <20240412103408.2706058-1-suzuki.poulose@arm.com>
GICv3-ITS is emulated by the host and thus we should allocate shared pages for
access by the host. Make sure the allocations are shared.
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
lib/arm/gic-v3.c | 6 ++++--
lib/arm64/gic-v3-its.c | 6 +++---
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/lib/arm/gic-v3.c b/lib/arm/gic-v3.c
index 2f7870ab..813cd5a6 100644
--- a/lib/arm/gic-v3.c
+++ b/lib/arm/gic-v3.c
@@ -171,7 +171,9 @@ void gicv3_lpi_alloc_tables(void)
u64 prop_val;
int cpu;
- gicv3_data.lpi_prop = alloc_pages(order);
+ assert(gicv3_redist_base());
+
+ gicv3_data.lpi_prop = alloc_pages_shared(order);
/* ID bits = 13, ie. up to 14b LPI INTID */
prop_val = (u64)(virt_to_phys(gicv3_data.lpi_prop)) | 13;
@@ -186,7 +188,7 @@ void gicv3_lpi_alloc_tables(void)
writeq(prop_val, ptr + GICR_PROPBASER);
- gicv3_data.lpi_pend[cpu] = alloc_pages(order);
+ gicv3_data.lpi_pend[cpu] = alloc_pages_shared(order);
pend_val = (u64)(virt_to_phys(gicv3_data.lpi_pend[cpu]));
writeq(pend_val, ptr + GICR_PENDBASER);
}
diff --git a/lib/arm64/gic-v3-its.c b/lib/arm64/gic-v3-its.c
index 2c69cfda..07dbeb81 100644
--- a/lib/arm64/gic-v3-its.c
+++ b/lib/arm64/gic-v3-its.c
@@ -54,7 +54,7 @@ static void its_baser_alloc_table(struct its_baser *baser, size_t size)
void *reg_addr = gicv3_its_base() + GITS_BASER + baser->index * 8;
u64 val = readq(reg_addr);
- baser->table_addr = alloc_pages(order);
+ baser->table_addr = alloc_pages_shared(order);
val |= virt_to_phys(baser->table_addr) | GITS_BASER_VALID;
@@ -70,7 +70,7 @@ static void its_cmd_queue_init(void)
unsigned long order = get_order(SZ_64K >> PAGE_SHIFT);
u64 cbaser;
- its_data.cmd_base = alloc_pages(order);
+ its_data.cmd_base = alloc_pages_shared(order);
cbaser = virt_to_phys(its_data.cmd_base) | (SZ_64K / SZ_4K - 1) | GITS_CBASER_VALID;
@@ -123,7 +123,7 @@ struct its_device *its_create_device(u32 device_id, int nr_ites)
new->nr_ites = nr_ites;
n = (its_data.typer.ite_size * nr_ites) >> PAGE_SHIFT;
- new->itt = alloc_pages(get_order(n));
+ new->itt = alloc_pages_shared(get_order(n));
its_data.nr_devices++;
return new;
--
2.34.1
next prev parent reply other threads:[~2024-04-12 10:35 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-12 10:33 [kvm-unit-tests PATCH 00/33] Support for Arm Confidential Compute Architecture Suzuki K Poulose
2024-04-10 16:17 ` Itaru Kitayama
2024-04-15 8:59 ` Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 01/33] arm: Add necessary header files in asm/pgtable.h Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 02/33] arm: Detect FDT overlap with uninitialised data Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 03/33] arm64: Expand SMCCC arguments and return values Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 04/33] arm: Make physical address mask dynamic Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 05/33] arm64: Introduce NS_SHARED PTE attribute Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 06/33] arm: Move io_init after vm initialization Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 07/33] arm: realm: Add RSI interface header Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 08/33] arm: realm: Make uart available before MMU is enabled Suzuki K Poulose
2024-04-22 11:58 ` Alexandru Elisei
2024-04-22 12:09 ` Suzuki K Poulose
2024-04-22 12:23 ` Alexandru Elisei
2024-04-22 12:36 ` Alexandru Elisei
2024-04-22 13:09 ` Suzuki K Poulose
2024-04-22 15:38 ` Alexandru Elisei
2024-04-22 16:05 ` Suzuki K Poulose
2024-04-22 16:15 ` Alexandru Elisei
2024-04-26 11:15 ` Suzuki K Poulose
2024-04-26 13:51 ` Alexandru Elisei
2024-04-12 10:33 ` [kvm-unit-tests PATCH 09/33] arm: realm: Realm initialisation Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 10/33] arm: realm: Add support for changing the state of memory Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 11/33] arm: realm: Set RIPAS state for RAM Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 12/33] arm: realm: Early memory setup Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 13/33] arm: realm: Add RSI version test Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 14/33] arm: selftest: realm: skip pabt test when running in a realm Suzuki K Poulose
2024-04-22 15:48 ` Alexandru Elisei
2024-04-12 10:33 ` [kvm-unit-tests PATCH 15/33] arm: realm: add hvc and RSI_HOST_CALL tests Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 16/33] arm64: add ESR_ELx EC.SVE Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 17/33] arm64: enable SVE at startup Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 18/33] arm: realm: Add test for FPU/SIMD context save/restore Suzuki K Poulose
2024-05-10 15:28 ` Andrew Jones
2024-05-14 10:27 ` Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 19/33] arm64: selftest: add realm SVE VL test Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 20/33] arm: realm: Add tests for in realm SEA Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 21/33] lib/alloc_page: Add shared page allocation support Suzuki K Poulose
2024-04-12 10:33 ` Suzuki K Poulose [this message]
2024-04-12 10:33 ` [kvm-unit-tests PATCH 23/33] arm: realm: Enable memory encryption Suzuki K Poulose
2024-04-12 10:33 ` [kvm-unit-tests PATCH 24/33] qcbor: Add QCBOR as a submodule Suzuki K Poulose
2024-04-12 10:34 ` [kvm-unit-tests PATCH 25/33] arm: Add build steps for QCBOR library Suzuki K Poulose
2024-04-12 10:34 ` [kvm-unit-tests PATCH 26/33] arm: Add a library to verify tokens using the " Suzuki K Poulose
2024-04-12 10:34 ` [kvm-unit-tests PATCH 27/33] arm: realm: add RSI interface for attestation measurements Suzuki K Poulose
2024-04-12 10:34 ` [kvm-unit-tests PATCH 28/33] arm: realm: Add helpers to decode RSI return codes Suzuki K Poulose
2024-04-12 10:34 ` [kvm-unit-tests PATCH 29/33] arm: realm: Add Realm attestation tests Suzuki K Poulose
2024-04-12 10:34 ` [kvm-unit-tests PATCH 30/33] " Suzuki K Poulose
2024-04-12 10:34 ` [kvm-unit-tests PATCH 31/33] arm: realm: Add a test for shared memory Suzuki K Poulose
2024-04-12 10:34 ` [kvm-unit-tests PATCH 32/33] arm: Add memtest support Suzuki K Poulose
2024-04-12 10:34 ` [kvm-unit-tests PATCH 33/33] NOT-FOR-MERGING: add run-realm-tests Suzuki K Poulose
2024-04-16 14:28 ` [kvm-unit-tests PATCH 00/33] Support for Arm Confidential Compute Architecture Jean-Philippe Brucker
2024-05-10 15:23 ` Andrew Jones
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240412103408.2706058-23-suzuki.poulose@arm.com \
--to=suzuki.poulose@arm.com \
--cc=alexandru.elisei@arm.com \
--cc=andrew.jones@linux.dev \
--cc=eric.auger@redhat.com \
--cc=james.morse@arm.com \
--cc=joey.gouly@arm.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.linux.dev \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-coco@lists.linux.dev \
--cc=maz@kernel.org \
--cc=oliver.upton@linux.dev \
--cc=steven.price@arm.com \
--cc=yuzenghui@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).