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[5.69.146.176]) by smtp.gmail.com with ESMTPSA id l7-20020a05600c47c700b003dc3bbdf518sm1656628wmo.21.2023.01.27.07.16.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Jan 2023 07:16:05 -0800 (PST) From: Jean-Philippe Brucker To: peter.maydell@linaro.org Cc: qemu-devel@nongnu.org, qemu-arm@nongnu.org, pbonzini@redhat.com, eblake@redhat.com, armbru@redhat.com, berrange@redhat.com, eduardo@habkost.net, alex.bennee@linaro.org, richard.henderson@linaro.org, Jean-Philippe Brucker Subject: [RFC PATCH 13/16] target/arm/kvm-rme: Add breakpoints and watchpoints parameters Date: Fri, 27 Jan 2023 15:07:26 +0000 Message-Id: <20230127150727.612594-14-jean-philippe@linaro.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230127150727.612594-1-jean-philippe@linaro.org> References: <20230127150727.612594-1-jean-philippe@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::333; envelope-from=jean-philippe@linaro.org; helo=mail-wm1-x333.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Pass the num_bps and num_wps parameters to Realm creation. These parameters contribute to the initial Realm measurement. Signed-off-by: Jean-Philippe Brucker Acked-by: Richard Henderson --- qapi/qom.json | 8 +++++++- target/arm/kvm-rme.c | 34 +++++++++++++++++++++++++++++++++- 2 files changed, 40 insertions(+), 2 deletions(-) diff --git a/qapi/qom.json b/qapi/qom.json index 94ecb87f6f..86ed386f26 100644 --- a/qapi/qom.json +++ b/qapi/qom.json @@ -866,12 +866,18 @@ # # @sve-vector-length: SVE vector length (default: 0, SVE disabled) # +# @num-breakpoints: Number of breakpoints (default: 0) +# +# @num-watchpoints: Number of watchpoints (default: 0) +# # Since: FIXME ## { 'struct': 'RmeGuestProperties', 'data': { '*measurement-algo': 'str', '*personalization-value': 'str', - '*sve-vector-length': 'uint32' } } + '*sve-vector-length': 'uint32', + '*num-breakpoints': 'uint32', + '*num-watchpoints': 'uint32' } } ## # @ObjectType: diff --git a/target/arm/kvm-rme.c b/target/arm/kvm-rme.c index 0b2153a45c..3f39f1f7ad 100644 --- a/target/arm/kvm-rme.c +++ b/target/arm/kvm-rme.c @@ -22,7 +22,9 @@ OBJECT_DECLARE_SIMPLE_TYPE(RmeGuest, RME_GUEST) #define RME_PAGE_SIZE qemu_real_host_page_size() -#define RME_MAX_CFG 3 +#define RME_MAX_BPS 0x10 +#define RME_MAX_WPS 0x10 +#define RME_MAX_CFG 4 typedef struct RmeGuest RmeGuest; @@ -31,6 +33,8 @@ struct RmeGuest { char *measurement_algo; char *personalization_value; uint32_t sve_vl; + uint32_t num_wps; + uint32_t num_bps; }; struct RmeImage { @@ -145,6 +149,14 @@ static int rme_configure_one(RmeGuest *guest, uint32_t cfg, Error **errp) args.sve_vq = guest->sve_vl / 128; cfg_str = "SVE"; break; + case KVM_CAP_ARM_RME_CFG_DBG: + if (!guest->num_bps && !guest->num_wps) { + return 0; + } + args.num_brps = guest->num_bps; + args.num_wrps = guest->num_wps; + cfg_str = "debug parameters"; + break; default: g_assert_not_reached(); } @@ -362,6 +374,10 @@ static void rme_get_uint32(Object *obj, Visitor *v, const char *name, if (strcmp(name, "sve-vector-length") == 0) { value = guest->sve_vl; + } else if (strcmp(name, "num-breakpoints") == 0) { + value = guest->num_bps; + } else if (strcmp(name, "num-watchpoints") == 0) { + value = guest->num_wps; } else { g_assert_not_reached(); } @@ -388,6 +404,12 @@ static void rme_set_uint32(Object *obj, Visitor *v, const char *name, error_setg(errp, "invalid SVE vector length %"PRIu32, value); return; } + } else if (strcmp(name, "num-breakpoints") == 0) { + max_value = RME_MAX_BPS; + var = &guest->num_bps; + } else if (strcmp(name, "num-watchpoints") == 0) { + max_value = RME_MAX_WPS; + var = &guest->num_wps; } else { g_assert_not_reached(); } @@ -424,6 +446,16 @@ static void rme_guest_class_init(ObjectClass *oc, void *data) rme_set_uint32, NULL, NULL); object_class_property_set_description(oc, "sve-vector-length", "SVE vector length. 0 disables SVE (the default)"); + + object_class_property_add(oc, "num-breakpoints", "uint32", rme_get_uint32, + rme_set_uint32, NULL, NULL); + object_class_property_set_description(oc, "num-breakpoints", + "Number of breakpoints"); + + object_class_property_add(oc, "num-watchpoints", "uint32", rme_get_uint32, + rme_set_uint32, NULL, NULL); + object_class_property_set_description(oc, "num-watchpoints", + "Number of watchpoints"); } static const TypeInfo rme_guest_info = {