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custom message types for safecopy calls

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This commit is contained in:
Ben Gras
2014-07-26 13:54:00 +02:00
committed by Lionel Sambuc
parent c24f718bb4
commit 9961d3d3e5
5 changed files with 48 additions and 40 deletions
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34
kernel/system/do_safecopy.c
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@@ -2,15 +2,15 @@
* m_type: SYS_SAFECOPYFROM or SYS_SAFECOPYTO or SYS_VSAFECOPY
*
* The parameters for this kernel call are:
* SCP_FROM_TO other endpoint
* SCP_GID grant id
* SCP_OFFSET offset within granted space
* SCP_ADDRESS address in own address space
* SCP_BYTES bytes to be copied
* m_lsys_kern_safecopy.from_to other endpoint
* m_lsys_kern_safecopy.gid grant id
* m_lsys_kern_safecopy.offset offset within granted space
* m_lsys_kern_safecopy.address address in own address space
* m_lsys_kern_safecopy.bytes bytes to be copied
*
* For the vectored variant (do_vsafecopy):
* VSCP_VEC_ADDR address of vector
* VSCP_VEC_SIZE number of significant elements in vector
* m_lsys_kern_vsafecopy.vec_addr address of vector
* m_lsys_kern_vsafecopy.vec_size number of significant elements in vector
*/
#include <assert.h>
@@ -318,10 +318,10 @@ int access; /* CPF_READ for a copy from granter to grantee, CPF_WRITE
*===========================================================================*/
int do_safecopy_to(struct proc * caller, message * m_ptr)
{
return safecopy(caller, m_ptr->SCP_FROM_TO, caller->p_endpoint,
(cp_grant_id_t) m_ptr->SCP_GID,
m_ptr->SCP_BYTES, m_ptr->SCP_OFFSET,
(vir_bytes) m_ptr->SCP_ADDRESS, CPF_WRITE);
return safecopy(caller, m_ptr->m_lsys_kern_safecopy.from_to, caller->p_endpoint,
(cp_grant_id_t) m_ptr->m_lsys_kern_safecopy.gid,
m_ptr->m_lsys_kern_safecopy.bytes, m_ptr->m_lsys_kern_safecopy.offset,
(vir_bytes) m_ptr->m_lsys_kern_safecopy.address, CPF_WRITE);
}
/*===========================================================================*
@@ -329,10 +329,10 @@ int do_safecopy_to(struct proc * caller, message * m_ptr)
*===========================================================================*/
int do_safecopy_from(struct proc * caller, message * m_ptr)
{
return safecopy(caller, m_ptr->SCP_FROM_TO, caller->p_endpoint,
(cp_grant_id_t) m_ptr->SCP_GID,
m_ptr->SCP_BYTES, m_ptr->SCP_OFFSET,
(vir_bytes) m_ptr->SCP_ADDRESS, CPF_READ);
return safecopy(caller, m_ptr->m_lsys_kern_safecopy.from_to, caller->p_endpoint,
(cp_grant_id_t) m_ptr->m_lsys_kern_safecopy.gid,
m_ptr->m_lsys_kern_safecopy.bytes, m_ptr->m_lsys_kern_safecopy.offset,
(vir_bytes) m_ptr->m_lsys_kern_safecopy.address, CPF_READ);
}
/*===========================================================================*
@@ -348,12 +348,12 @@ int do_vsafecopy(struct proc * caller, message * m_ptr)
/* Set vector copy parameters. */
src.proc_nr_e = caller->p_endpoint;
assert(src.proc_nr_e != NONE);
src.offset = (vir_bytes) m_ptr->VSCP_VEC_ADDR;
src.offset = (vir_bytes) m_ptr->m_lsys_kern_vsafecopy.vec_addr;
dst.proc_nr_e = KERNEL;
dst.offset = (vir_bytes) vec;
/* No. of vector elements. */
els = m_ptr->VSCP_VEC_SIZE;
els = m_ptr->m_lsys_kern_vsafecopy.vec_size;
bytes = els * sizeof(struct vscp_vec);
/* Obtain vector of copies. */