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From 99ac82bfa364eef3e6aa27a12d4eb5e23c7ccfb1 Mon Sep 17 00:00:00 2001
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Message-Id: <99ac82bfa364eef3e6aa27a12d4eb5e23c7ccfb1.1387298827.git.minovotn@redhat.com>
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In-Reply-To: <3ed0fb61a3dc912ef036d7ef450bed192090709e.1387298827.git.minovotn@redhat.com>
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References: <3ed0fb61a3dc912ef036d7ef450bed192090709e.1387298827.git.minovotn@redhat.com>
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From: "Michael S. Tsirkin" <mst@redhat.com>
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Date: Tue, 17 Dec 2013 15:19:02 +0100
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Subject: [PATCH 46/56] acpi: add interface to access user-installed tables
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RH-Author: Michael S. Tsirkin <mst@redhat.com>
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Message-id: <1387293161-4085-47-git-send-email-mst@redhat.com>
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Patchwork-id: 56353
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O-Subject: [PATCH qemu-kvm RHEL7.0 v2 46/57] acpi: add interface to access user-installed tables
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Bugzilla: 1034876
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RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
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RH-Acked-by: Marcel Apfelbaum <marcel.a@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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Also add a new API to install builtin tables, so
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that we can distinguish between the two.
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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(cherry picked from commit 60de1163d5b5013fe964ac0792e9a64a823e73a3)
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---
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include/hw/acpi/acpi.h | 4 ++++
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hw/acpi/core.c | 40 ++++++++++++++++++++++++++++++++++++++++
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2 files changed, 44 insertions(+)
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Signed-off-by: Michal Novotny <minovotn@redhat.com>
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---
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hw/acpi/core.c | 40 ++++++++++++++++++++++++++++++++++++++++
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include/hw/acpi/acpi.h | 4 ++++
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2 files changed, 44 insertions(+)
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diff --git a/hw/acpi/core.c b/hw/acpi/core.c
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index 42eeace..3352d17 100644
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--- a/hw/acpi/core.c
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+++ b/hw/acpi/core.c
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@@ -309,6 +309,46 @@ out:
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error_propagate(errp, err);
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}
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+static bool acpi_table_builtin = false;
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+
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+void acpi_table_add_builtin(const QemuOpts *opts, Error **errp)
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+{
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+ acpi_table_builtin = true;
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+ acpi_table_add(opts, errp);
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+}
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+
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+unsigned acpi_table_len(void *current)
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+{
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+ struct acpi_table_header *hdr = current - sizeof(hdr->_length);
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+ return hdr->_length;
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+}
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+
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+static
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+void *acpi_table_hdr(void *h)
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+{
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+ struct acpi_table_header *hdr = h;
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+ return &hdr->sig;
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+}
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+
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+uint8_t *acpi_table_first(void)
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+{
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+ if (acpi_table_builtin || !acpi_tables) {
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+ return NULL;
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+ }
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+ return acpi_table_hdr(acpi_tables + ACPI_TABLE_PFX_SIZE);
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+}
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+
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+uint8_t *acpi_table_next(uint8_t *current)
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+{
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+ uint8_t *next = current + acpi_table_len(current);
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+
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+ if (next - acpi_tables >= acpi_tables_len) {
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+ return NULL;
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+ } else {
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+ return acpi_table_hdr(next);
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+ }
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+}
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+
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static void acpi_notify_wakeup(Notifier *notifier, void *data)
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{
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ACPIREGS *ar = container_of(notifier, ACPIREGS, wakeup);
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diff --git a/include/hw/acpi/acpi.h b/include/hw/acpi/acpi.h
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index 635be7b..bb7136d 100644
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--- a/include/hw/acpi/acpi.h
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+++ b/include/hw/acpi/acpi.h
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@@ -165,6 +165,10 @@ extern int acpi_enabled;
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extern char unsigned *acpi_tables;
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extern size_t acpi_tables_len;
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+uint8_t *acpi_table_first(void);
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+uint8_t *acpi_table_next(uint8_t *current);
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+unsigned acpi_table_len(void *current);
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void acpi_table_add(const QemuOpts *opts, Error **errp);
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+void acpi_table_add_builtin(const QemuOpts *opts, Error **errp);
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#endif /* !QEMU_HW_ACPI_H */
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--
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1.7.11.7
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