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[121.44.69.75]) by smtp.gmail.com with ESMTPSA id r17-20020a632b11000000b0050f7f783ff0sm1039414pgr.76.2023.03.20.00.04.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Mar 2023 00:04:20 -0700 (PDT) From: Nicholas Piggin To: kvm@vger.kernel.org Subject: [kvm-unit-tests v2 10/10] powerpc/sprs: Test hypervisor registers on powernv machine Date: Mon, 20 Mar 2023 17:03:39 +1000 Message-Id: <20230320070339.915172-11-npiggin@gmail.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230320070339.915172-1-npiggin@gmail.com> References: <20230320070339.915172-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Thomas Huth , linuxppc-dev@lists.ozlabs.org, Nicholas Piggin Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" This enables HV privilege registers to be tested with the powernv machine. Signed-off-by: Nicholas Piggin --- powerpc/sprs.c | 31 ++++++++++++++++++++++++------- 1 file changed, 24 insertions(+), 7 deletions(-) diff --git a/powerpc/sprs.c b/powerpc/sprs.c index dd83dac..a7878ff 100644 --- a/powerpc/sprs.c +++ b/powerpc/sprs.c @@ -199,16 +199,16 @@ static const struct spr sprs_power_common[1024] = { [190] = {"HFSCR", 64, HV_RW, }, [256] = {"VRSAVE", 32, RW, }, [259] = {"SPRG3", 64, RO, }, -[284] = {"TBL", 32, HV_WO, }, -[285] = {"TBU", 32, HV_WO, }, -[286] = {"TBU40", 64, HV_WO, }, +[284] = {"TBL", 32, HV_WO, }, /* Things can go a bit wonky with */ +[285] = {"TBU", 32, HV_WO, }, /* Timebase changing. Should save */ +[286] = {"TBU40", 64, HV_WO, }, /* and restore it. */ [304] = {"HSPRG0", 64, HV_RW, }, [305] = {"HSPRG1", 64, HV_RW, }, [306] = {"HDSISR", 32, HV_RW, SPR_INT, }, [307] = {"HDAR", 64, HV_RW, SPR_INT, }, [308] = {"SPURR", 64, HV_RW | OS_RO, SPR_ASYNC, }, [309] = {"PURR", 64, HV_RW | OS_RO, SPR_ASYNC, }, -[313] = {"HRMOR", 64, HV_RW, }, +[313] = {"HRMOR", 64, HV_RW, SPR_HARNESS, }, /* Harness can't cope with HRMOR changing */ [314] = {"HSRR0", 64, HV_RW, SPR_INT, }, [315] = {"HSRR1", 64, HV_RW, SPR_INT, }, [318] = {"LPCR", 64, HV_RW, }, @@ -350,6 +350,22 @@ static const struct spr sprs_power10_pmu[1024] = { static struct spr sprs[1024]; +static bool spr_read_perms(int spr) +{ + if (machine_is_powernv()) + return !!(sprs[spr].access & SPR_HV_READ); + else + return !!(sprs[spr].access & SPR_OS_READ); +} + +static bool spr_write_perms(int spr) +{ + if (machine_is_powernv()) + return !!(sprs[spr].access & SPR_HV_WRITE); + else + return !!(sprs[spr].access & SPR_OS_WRITE); +} + static void setup_sprs(void) { uint32_t pvr = mfspr(287); /* Processor Version Register */ @@ -462,7 +478,7 @@ static void get_sprs(uint64_t *v) int i; for (i = 0; i < 1024; i++) { - if (!(sprs[i].access & SPR_OS_READ)) + if (!spr_read_perms(i)) continue; v[i] = mfspr(i); } @@ -473,8 +489,9 @@ static void set_sprs(uint64_t val) int i; for (i = 0; i < 1024; i++) { - if (!(sprs[i].access & SPR_OS_WRITE)) + if (!spr_write_perms(i)) continue; + if (sprs[i].type & SPR_HARNESS) continue; if (!strcmp(sprs[i].name, "MMCR0")) { @@ -546,7 +563,7 @@ int main(int argc, char **argv) for (i = 0; i < 1024; i++) { bool pass = true; - if (!(sprs[i].access & SPR_OS_READ)) + if (!spr_read_perms(i)) continue; if (sprs[i].width == 32) { -- 2.37.2