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Code Issues Releases Activity

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (4 of many)

Browse Source 
r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked). Use it in
preparation for a general review of all nodes.
This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Reviewed by:	kib
Approved by:	kib (mentor)
Differential Revision:	https://reviews.freebsd.org/D23625
X-Generally looks fine:	jhb
This commit is contained in:
Pawel Biernacki 2020-02-15 18:57:49 +00:00
parent 39a3542bef
commit b40598c539
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=357974
11 changed files with 33 additions and 19 deletions
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11
sys/amd64/vmm/amd/amdvi_hw.c
View File

@ -58,7 +58,8 @@ __FBSDID("$FreeBSD$");
#include "amdvi_priv.h"
SYSCTL_DECL(_hw_vmm);
SYSCTL_NODE(_hw_vmm, OID_AUTO, amdvi, CTLFLAG_RW, NULL, NULL);
SYSCTL_NODE(_hw_vmm, OID_AUTO, amdvi, CTLFLAG_RW | CTLFLAG_MPSAFE, NULL,
NULL);
#define MOD_INC(a, s, m) (((a) + (s)) % ((m) * (s)))
#define MOD_DEC(a, s, m) (((a) - (s)) % ((m) * (s)))
@ -947,16 +948,16 @@ amdvi_add_sysctl(struct amdvi_softc *softc)
SYSCTL_ADD_U16(ctx, child, OID_AUTO, "end_dev_rid", CTLFLAG_RD,
&softc->end_dev_rid, 0, "End of device under this IOMMU");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "command_head",
CTLTYPE_UINT | CTLFLAG_RD, softc, 0,
CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, softc, 0,
amdvi_handle_sysctl, "IU", "Command head");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "command_tail",
CTLTYPE_UINT | CTLFLAG_RD, softc, 1,
CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, softc, 1,
amdvi_handle_sysctl, "IU", "Command tail");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "event_head",
CTLTYPE_UINT | CTLFLAG_RD, softc, 2,
CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, softc, 2,
amdvi_handle_sysctl, "IU", "Command head");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "event_tail",
CTLTYPE_UINT | CTLFLAG_RD, softc, 3,
CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, softc, 3,
amdvi_handle_sysctl, "IU", "Command tail");
}

3
sys/amd64/vmm/amd/npt.c
View File

@ -41,7 +41,8 @@ __FBSDID("$FreeBSD$");
#include "npt.h"
SYSCTL_DECL(_hw_vmm);
SYSCTL_NODE(_hw_vmm, OID_AUTO, npt, CTLFLAG_RW, NULL, NULL);
SYSCTL_NODE(_hw_vmm, OID_AUTO, npt, CTLFLAG_RW | CTLFLAG_MPSAFE, NULL,
NULL);
static int npt_flags;
SYSCTL_INT(_hw_vmm_npt, OID_AUTO, pmap_flags, CTLFLAG_RD,

3
sys/amd64/vmm/amd/svm.c
View File

@ -67,7 +67,8 @@ __FBSDID("$FreeBSD$");
#include "npt.h"
SYSCTL_DECL(_hw_vmm);
SYSCTL_NODE(_hw_vmm, OID_AUTO, svm, CTLFLAG_RW, NULL, NULL);
SYSCTL_NODE(_hw_vmm, OID_AUTO, svm, CTLFLAG_RW | CTLFLAG_MPSAFE, NULL,
NULL);
/*
* SVM CPUID function 0x8000_000A, edx bit decoding.

3
sys/amd64/vmm/intel/ept.c
View File

@ -68,7 +68,8 @@ __FBSDID("$FreeBSD$");
#define EPT_ENABLE_AD_BITS (1 << 6)
SYSCTL_DECL(_hw_vmm);
SYSCTL_NODE(_hw_vmm, OID_AUTO, ept, CTLFLAG_RW, NULL, NULL);
SYSCTL_NODE(_hw_vmm, OID_AUTO, ept, CTLFLAG_RW | CTLFLAG_MPSAFE, NULL,
NULL);
static int ept_enable_ad_bits;

7
sys/amd64/vmm/intel/vmx.c
View File

@ -123,7 +123,8 @@ static MALLOC_DEFINE(M_VMX, "vmx", "vmx");
static MALLOC_DEFINE(M_VLAPIC, "vlapic", "vlapic");
SYSCTL_DECL(_hw_vmm);
SYSCTL_NODE(_hw_vmm, OID_AUTO, vmx, CTLFLAG_RW, NULL, NULL);
SYSCTL_NODE(_hw_vmm, OID_AUTO, vmx, CTLFLAG_RW | CTLFLAG_MPSAFE, NULL,
NULL);
int vmxon_enabled[MAXCPU];
static char vmxon_region[MAXCPU][PAGE_SIZE] __aligned(PAGE_SIZE);
@ -150,7 +151,9 @@ SYSCTL_INT(_hw_vmm_vmx, OID_AUTO, initialized, CTLFLAG_RD,
/*
* Optional capabilities
*/
static SYSCTL_NODE(_hw_vmm_vmx, OID_AUTO, cap, CTLFLAG_RW, NULL, NULL);
static SYSCTL_NODE(_hw_vmm_vmx, OID_AUTO, cap,
CTLFLAG_RW | CTLFLAG_MPSAFE, NULL,
NULL);
static int cap_halt_exit;
SYSCTL_INT(_hw_vmm_vmx_cap, OID_AUTO, halt_exit, CTLFLAG_RD, &cap_halt_exit, 0,

3
sys/amd64/vmm/io/iommu.c
View File

@ -48,7 +48,8 @@ __FBSDID("$FreeBSD$");
#include "iommu.h"
SYSCTL_DECL(_hw_vmm);
SYSCTL_NODE(_hw_vmm, OID_AUTO, iommu, CTLFLAG_RW, 0, "bhyve iommu parameters");
SYSCTL_NODE(_hw_vmm, OID_AUTO, iommu, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
"bhyve iommu parameters");
static int iommu_avail;
SYSCTL_INT(_hw_vmm_iommu, OID_AUTO, initialized, CTLFLAG_RD, &iommu_avail,

3
sys/amd64/vmm/io/ppt.c
View File

@ -112,7 +112,8 @@ struct pptdev {
};
SYSCTL_DECL(_hw_vmm);
SYSCTL_NODE(_hw_vmm, OID_AUTO, ppt, CTLFLAG_RW, 0, "bhyve passthru devices");
SYSCTL_NODE(_hw_vmm, OID_AUTO, ppt, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
"bhyve passthru devices");
static int num_pptdevs;
SYSCTL_INT(_hw_vmm_ppt, OID_AUTO, devices, CTLFLAG_RD, &num_pptdevs, 0,

3
sys/amd64/vmm/io/vrtc.c
View File

@ -106,7 +106,8 @@ static void vrtc_set_reg_c(struct vrtc *vrtc, uint8_t newval);
static MALLOC_DEFINE(M_VRTC, "vrtc", "bhyve virtual rtc");
SYSCTL_DECL(_hw_vmm);
SYSCTL_NODE(_hw_vmm, OID_AUTO, vrtc, CTLFLAG_RW, NULL, NULL);
SYSCTL_NODE(_hw_vmm, OID_AUTO, vrtc, CTLFLAG_RW | CTLFLAG_MPSAFE, NULL,
NULL);
static int rtc_flag_broken_time = 1;
SYSCTL_INT(_hw_vmm_vrtc, OID_AUTO, flag_broken_time, CTLFLAG_RDTUN,

3
sys/amd64/vmm/vmm.c
View File

@ -215,7 +215,8 @@ static MALLOC_DEFINE(M_VM, "vm", "vm");
/* statistics */
static VMM_STAT(VCPU_TOTAL_RUNTIME, "vcpu total runtime");
SYSCTL_NODE(_hw, OID_AUTO, vmm, CTLFLAG_RW, NULL, NULL);
SYSCTL_NODE(_hw, OID_AUTO, vmm, CTLFLAG_RW | CTLFLAG_MPSAFE, NULL,
NULL);
/*
* Halt the guest if all vcpus are executing a HLT instruction with

10
sys/amd64/vmm/vmm_dev.c
View File

@ -962,8 +962,9 @@ sysctl_vmm_destroy(SYSCTL_HANDLER_ARGS)
return (error);
}
SYSCTL_PROC(_hw_vmm, OID_AUTO, destroy,
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON,
NULL, 0, sysctl_vmm_destroy, "A", NULL);
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_MPSAFE,
NULL, 0, sysctl_vmm_destroy, "A",
NULL);
static struct cdevsw vmmdevsw = {
.d_name = "vmmdev",
@ -1045,8 +1046,9 @@ sysctl_vmm_create(SYSCTL_HANDLER_ARGS)
return (error);
}
SYSCTL_PROC(_hw_vmm, OID_AUTO, create,
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON,
NULL, 0, sysctl_vmm_create, "A", NULL);
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_MPSAFE,
NULL, 0, sysctl_vmm_create, "A",
NULL);
void
vmmdev_init(void)

3
sys/amd64/vmm/x86.c
View File

@ -50,7 +50,8 @@ __FBSDID("$FreeBSD$");
#include "x86.h"
SYSCTL_DECL(_hw_vmm);
static SYSCTL_NODE(_hw_vmm, OID_AUTO, topology, CTLFLAG_RD, 0, NULL);
static SYSCTL_NODE(_hw_vmm, OID_AUTO, topology, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
NULL);
#define CPUID_VM_HIGH 0x40000000